Motorcycle Helmet Size Charts (UK)

How to measure your head

Every helmet size chart starts from one number: the circumference of your head at its widest point. It takes a minute to measure, and it is the difference between ordering confidently and guessing.

Use a soft tailor's tape. If you only have a rigid one, wrap a length of string around your head instead, mark where it meets, then hold the string against a ruler.

The table below is the sizing most helmets sold in the UK follow, but it is a starting point rather than a rule. Brands set their own bands, so where a model's own chart is shown on its page, that chart wins.

Put the tape around your head about 2.5cm above your eyebrows, roughly a finger's width.
Take it around the widest part at the back of your skull, not around the nape of your neck.
Keep the tape level all the way round, snug against your head but not pulled tight.
Measure twice and use the larger figure. Between two sizes, most riders are better off trying the smaller one first, because the padding loosens as it beds in.

Read the full helmet buying guide

AGV

agv eteres

Head circumference for each size of the agv eteres
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

agv k1

Head circumference for each size of the agv k1
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
MS	57cm	22.4in
ML	58cm	22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

agv k1 s

Head circumference for each size of the agv k1 s
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

agv k3

Head circumference for each size of the agv k3
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

agv k6 s

Head circumference for each size of the agv k6 s
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

agv k7

Head circumference for each size of the agv k7
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

agv pista gp rr

Head circumference for each size of the agv pista gp rr
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

agv street modular

Head circumference for each size of the agv street modular
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

agv x70

Head circumference for each size of the agv x70
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55cm	21.7in
MS	56cm	22.0in

Airoh

airoh bandit

Head circumference for each size of the airoh bandit
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	64 to 65cm	25.2 to 25.6in

airoh commander 2

Head circumference for each size of the airoh commander 2
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	64 to 65cm	25.2 to 25.6in

Akito

akito adventure motorcycle

Head circumference for each size of the akito adventure motorcycle
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Alpinestars

alpinestars supertech r10

Head circumference for each size of the alpinestars supertech r10
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

Arai

arai quantic

Head circumference for each size of the arai quantic
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

arai rx 7v evo

Head circumference for each size of the arai rx 7v evo
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

arai tour x5

Head circumference for each size of the arai tour x5
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Axor

axor rage

Head circumference for each size of the axor rage
Size	Head (cm)	Head (in)
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

axor x cross

Head circumference for each size of the axor x cross
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

Bell

bell broozer

Head circumference for each size of the bell broozer
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XXL	63 to 64cm	24.8 to 25.2in

bell bullitt

Head circumference for each size of the bell bullitt
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in

bell bullitt dlx

Head circumference for each size of the bell bullitt dlx
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
L	58 to 59cm	22.8 to 23.2in

bell bullitt gt

Head circumference for each size of the bell bullitt gt
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
XXL	62 to 63cm	24.4 to 24.8in

bell custom 500

Head circumference for each size of the bell custom 500
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

bell eliminator

Head circumference for each size of the bell eliminator
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

bell eliminator crb sg journey

Head circumference for each size of the bell eliminator crb sg journey
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

bell eliminator ece

Head circumference for each size of the bell eliminator ece
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

bell lithium

Head circumference for each size of the bell lithium
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

bell lithium mips

Head circumference for each size of the bell lithium mips
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

bell lithium mips plus

Head circumference for each size of the bell lithium mips plus
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

bell lithium mips plus rsd

Head circumference for each size of the bell lithium mips plus rsd
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

bell lithium mips tech

Head circumference for each size of the bell lithium mips tech
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

bell magnum

Head circumference for each size of the bell magnum
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

bell moto 3

Head circumference for each size of the bell moto 3
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
XL	61 to 62cm	24.0 to 24.4in

bell qualifier dlx mips

Head circumference for each size of the bell qualifier dlx mips
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

bell qualifier nv std

Head circumference for each size of the bell qualifier nv std
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XXL	63 to 64cm	24.8 to 25.2in

bell qualifier std

Head circumference for each size of the bell qualifier std
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

bell star mips

Head circumference for each size of the bell star mips
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

Caberg

caberg avalon

Head circumference for each size of the caberg avalon
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

caberg avalon x

Head circumference for each size of the caberg avalon x
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

caberg drift evo ii

Head circumference for each size of the caberg drift evo ii
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

caberg duke 2

Head circumference for each size of the caberg duke 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

caberg duke evo

Head circumference for each size of the caberg duke evo
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

caberg duke x

Head circumference for each size of the caberg duke x
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

caberg freeride x

Head circumference for each size of the caberg freeride x
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

caberg riviera v4x

Head circumference for each size of the caberg riviera v4x
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

caberg tanami

Head circumference for each size of the caberg tanami
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

caberg tourmax x

Head circumference for each size of the caberg tourmax x
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Fly

fly formula cc

Head circumference for each size of the fly formula cc
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	63 to 64cm	24.8 to 25.2in

fly formula cp

Head circumference for each size of the fly formula cp
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	61 to 62cm	24.0 to 24.4in

fly formula s

Head circumference for each size of the fly formula s
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

fly kinetic

Head circumference for each size of the fly kinetic
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	61 to 62cm	24.0 to 24.4in

fly trekker

Head circumference for each size of the fly trekker
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	60 to 61cm	23.6 to 24.0in

Frank Thomas

frank thomas dv24

Head circumference for each size of the frank thomas dv24
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	62 to 63cm	24.4 to 24.8in
XXL	64 to 65cm	25.2 to 25.6in

frank thomas dv37 open

Head circumference for each size of the frank thomas dv37 open
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in

frank thomas ft53

Head circumference for each size of the frank thomas ft53
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	62 to 63cm	24.4 to 24.8in
XXL	64 to 65cm	25.2 to 25.6in

frank thomas ft62 sv

Head circumference for each size of the frank thomas ft62 sv
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	62 to 63cm	24.4 to 24.8in

frank thomas ft815

Head circumference for each size of the frank thomas ft815
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	62 to 63cm	24.4 to 24.8in

frank thomas open face

Head circumference for each size of the frank thomas open face
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	60 to 61cm	23.6 to 24.0in
XXL	61 to 62cm	24.0 to 24.4in

frank thomas sa63 sv

Head circumference for each size of the frank thomas sa63 sv
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	62 to 63cm	24.4 to 24.8in

frank thomas smk venom

Head circumference for each size of the frank thomas smk venom
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61cm	24.0in

frank thomas ym 833 predator

Head circumference for each size of the frank thomas ym 833 predator
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in

FT998

Head circumference for each size of the FT998
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	62 to 63cm	24.4 to 24.8in

Givi

givi 50.8f mach1

Head circumference for each size of the givi 50.8f mach1
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

givi 50.9

Head circumference for each size of the givi 50.9
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in

givi 50.9f enigma

Head circumference for each size of the givi 50.9f enigma
Size	Head (cm)	Head (in)
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in

givi x27

Head circumference for each size of the givi x27
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

givi x30

Head circumference for each size of the givi x30
Size	Head (cm)	Head (in)
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in

GSB

gsb g 339

Head circumference for each size of the gsb g 339
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

HJC

hjc c10

Head circumference for each size of the hjc c10
Size	Head (cm)	Head (in)
XXXS	50 to 51cm	19.7 to 20.1in
XXS	52 to 53cm	20.5 to 20.9in
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc c50

Head circumference for each size of the hjc c50
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc c70n

Head circumference for each size of the hjc c70n
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc c71

Head circumference for each size of the hjc c71
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc c80

Head circumference for each size of the hjc c80
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc c91 taly

Head circumference for each size of the hjc c91 taly
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in

hjc c91 tero

Head circumference for each size of the hjc c91 tero
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in

hjc c91n

Head circumference for each size of the hjc c91n
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc c91n jyn

Head circumference for each size of the hjc c91n jyn
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc f100

Head circumference for each size of the hjc f100
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc f100 multi system

Head circumference for each size of the hjc f100 multi system
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc f31

Head circumference for each size of the hjc f31
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc f70

Head circumference for each size of the hjc f70
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc f71

Head circumference for each size of the hjc f71
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc i20

Head circumference for each size of the hjc i20
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc i30

Head circumference for each size of the hjc i30
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in

hjc i31

Head circumference for each size of the hjc i31
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc i40n

Head circumference for each size of the hjc i40n
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc i71

Head circumference for each size of the hjc i71
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc i80

Head circumference for each size of the hjc i80
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc i80 modular

Head circumference for each size of the hjc i80 modular
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc i80 roki

Head circumference for each size of the hjc i80 roki
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc i91

Head circumference for each size of the hjc i91
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in
XXXL	64 to 65cm	25.2 to 25.6in

hjc rpha 1

Head circumference for each size of the hjc rpha 1
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 1 v2

Head circumference for each size of the hjc rpha 1 v2
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 12

Head circumference for each size of the hjc rpha 12
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 31

Head circumference for each size of the hjc rpha 31
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 60

Head circumference for each size of the hjc rpha 60
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 70 stipe

Head circumference for each size of the hjc rpha 70 stipe
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 71

Head circumference for each size of the hjc rpha 71
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 72

Head circumference for each size of the hjc rpha 72
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc rpha 90s

Head circumference for each size of the hjc rpha 90s
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc rpha 91

Head circumference for each size of the hjc rpha 91
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc v10

Head circumference for each size of the hjc v10
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

hjc v30

Head circumference for each size of the hjc v30
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

hjc v31

Head circumference for each size of the hjc v31
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

hjc v60

Head circumference for each size of the hjc v60
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

LEM

lem optix

Head circumference for each size of the lem optix
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

lem quick open face

Head circumference for each size of the lem quick open face
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

lem vzn

Head circumference for each size of the lem vzn
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

LS2

ls2 ff353 Rapid 2

Head circumference for each size of the ls2 ff353 Rapid 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

ls2 ff807 dragon

Head circumference for each size of the ls2 ff807 dragon
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

ls2 ff811 vector 2

Head circumference for each size of the ls2 ff811 vector 2
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

ls2 ff812 kids

Head circumference for each size of the ls2 ff812 kids
Size	Head (cm)	Head (in)
S	48 to 49cm	18.9 to 19.3in
M	50 to 51cm	19.7 to 20.1in
L	52 to 53cm	20.5 to 20.9in

ls2 ff901 advant x

Head circumference for each size of the ls2 ff901 advant x
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

ls2 ff906 advant

Head circumference for each size of the ls2 ff906 advant
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

ls2 ff910 advant ii

Head circumference for each size of the ls2 ff910 advant ii
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

ls2 mx701 explorer

Head circumference for each size of the ls2 mx701 explorer
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

ls2 of601 bob ii

Head circumference for each size of the ls2 of601 bob ii
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

MT

mt aeris pure open face

Head circumference for each size of the mt aeris pure open face
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt atom 2

Head circumference for each size of the mt atom 2
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt atom 2 sv

Head circumference for each size of the mt atom 2 sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

mt avenue open face

Head circumference for each size of the mt avenue open face
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

mt braker fury

Head circumference for each size of the mt braker fury
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt braker sv

Head circumference for each size of the mt braker sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt cosmo sv

Head circumference for each size of the mt cosmo sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt genesis r sv pure

Head circumference for each size of the mt genesis r sv pure
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt genesis sv

Head circumference for each size of the mt genesis sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

mt jarama sv

Head circumference for each size of the mt jarama sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt le mans 2 sv s

Head circumference for each size of the mt le mans 2 sv s
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt rapide

Head circumference for each size of the mt rapide
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt stinger 2

Head circumference for each size of the mt stinger 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt stinger 2 tron

Head circumference for each size of the mt stinger 2 tron
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt stinger 2 youth pure full face

Head circumference for each size of the mt stinger 2 youth pure full face
Size	Head (cm)	Head (in)
S	48 to 49cm	18.9 to 19.3in
M	50 to 51cm	19.7 to 20.1in
L	52 to 53cm	20.5 to 20.9in

mt street

Head circumference for each size of the mt street
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt streetfighter

Head circumference for each size of the mt streetfighter
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

mt streetfighter sv s

Head circumference for each size of the mt streetfighter sv s
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt sv nomad

Head circumference for each size of the mt sv nomad
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt sv pure

Head circumference for each size of the mt sv pure
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt sv questor

Head circumference for each size of the mt sv questor
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt targo

Head circumference for each size of the mt targo
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt targo s

Head circumference for each size of the mt targo s
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt thunder 3 sv

Head circumference for each size of the mt thunder 3 sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
XL	61 to 62cm	24.0 to 24.4in

mt thunder 4

Head circumference for each size of the mt thunder 4
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

mt thunder 4 sv

Head circumference for each size of the mt thunder 4 sv
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

mt viale open face

Head circumference for each size of the mt viale open face
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

mt viale sv s

Head circumference for each size of the mt viale sv s
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Nitro

nitro f441

Head circumference for each size of the nitro f441
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

nitro mx502 moto

Head circumference for each size of the nitro mx502 moto
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
XL	62 to 63cm	24.4 to 24.8in

nitro n501

Head circumference for each size of the nitro n501
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

nitro n700 big mouth

Head circumference for each size of the nitro n700 big mouth
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

nitro n916 dvs

Head circumference for each size of the nitro n916 dvs
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

nitro nz302 fighter

Head circumference for each size of the nitro nz302 fighter
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	60 to 61cm	23.6 to 24.0in

nitro x662 uno

Head circumference for each size of the nitro x662 uno
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Nolan

nolan n100 6

Head circumference for each size of the nolan n100 6
Size	Head (cm)	Head (in)
XXS	53 to 54cm	20.9 to 21.3in
XS	55cm	21.7in
S	56cm	22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65cm	25.6in

nolan n120 1

Head circumference for each size of the nolan n120 1
Size	Head (cm)	Head (in)
XXS	53 to 54cm	20.9 to 21.3in
XS	55cm	21.7in
S	56cm	22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65cm	25.6in

nolan n21 06

Head circumference for each size of the nolan n21 06
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
MS	57 to 58cm	22.4 to 22.8in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

nolan n40 5 06

Head circumference for each size of the nolan n40 5 06
Size	Head (cm)	Head (in)
XXS	53 to 54cm	20.9 to 21.3in
XS	55cm	21.7in
S	56cm	22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

nolan n60 6

Head circumference for each size of the nolan n60 6
Size	Head (cm)	Head (in)
XS	55cm	21.7in
S	56cm	22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

nolan n80 8

Head circumference for each size of the nolan n80 8
Size	Head (cm)	Head (in)
XS	55cm	21.7in
S	56cm	22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65cm	25.6in

nolan x 804 rs

Head circumference for each size of the nolan x 804 rs
Size	Head (cm)	Head (in)
S	56cm	22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Novic

novic rever

Head circumference for each size of the novic rever
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

novic xterra

Head circumference for each size of the novic xterra
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

O'Neal

oneal adv kini bull 1

Head circumference for each size of the oneal adv kini bull 1
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

oneal challenger v25

Head circumference for each size of the oneal challenger v25
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

oneal exc kini bull

Head circumference for each size of the oneal exc kini bull
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

oneal sierra ii v23

Head circumference for each size of the oneal sierra ii v23
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

oneal sierra ii v24 r

Head circumference for each size of the oneal sierra ii v24 r
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

oneal volt v24

Head circumference for each size of the oneal volt v24
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	60 to 61cm	23.6 to 24.0in
XXL	61 to 62cm	24.0 to 24.4in

oneal volt v25

Head circumference for each size of the oneal volt v25
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	60 to 61cm	23.6 to 24.0in
XXL	61 to 62cm	24.0 to 24.4in

ProYou

proyou dp998

Head circumference for each size of the proyou dp998
Size	Head (cm)	Head (in)
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
XL	62 to 63cm	24.4 to 24.8in

Roof

roof ro9 boxxer 2

Head circumference for each size of the roof ro9 boxxer 2
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	56 to 57cm	22.0 to 22.4in
M	58 to 59cm	22.8 to 23.2in
L	60 to 61cm	23.6 to 24.0in
XL	61 to 62cm	24.0 to 24.4in

Schuberth

schuberth s3

Head circumference for each size of the schuberth s3
Size	Head (cm)	Head (in)
XS	52 to 53cm	20.5 to 20.9in
S	54 to 55cm	21.3 to 21.7in
XXXL	64 to 65cm	25.2 to 25.6in

Scorpion

scorpion adf 9000

Head circumference for each size of the scorpion adf 9000
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

scorpion adx 2

Head circumference for each size of the scorpion adx 2
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in
XXL	62 to 63cm	24.4 to 24.8in

scorpion exo 1400 evo ii

Head circumference for each size of the scorpion exo 1400 evo ii
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

scorpion exo 1400 evo ii air

Head circumference for each size of the scorpion exo 1400 evo ii air
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

scorpion exo 391

Head circumference for each size of the scorpion exo 391
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

scorpion exo 491

Head circumference for each size of the scorpion exo 491
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

scorpion exo 520 evo air

Head circumference for each size of the scorpion exo 520 evo air
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
XL	61 to 62cm	24.0 to 24.4in

scorpion exo 530 air

Head circumference for each size of the scorpion exo 530 air
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

scorpion exo r1 propel

Head circumference for each size of the scorpion exo r1 propel
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

scorpion exo tech evo

Head circumference for each size of the scorpion exo tech evo
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	60 to 61cm	23.6 to 24.0in

scorpion exo tech evo pro

Head circumference for each size of the scorpion exo tech evo pro
Size	Head (cm)	Head (in)
XS	54 to 55cm	21.3 to 21.7in
S	55 to 56cm	21.7 to 22.0in
L	58 to 59cm	22.8 to 23.2in

Shark

shark aeron

Head circumference for each size of the shark aeron
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark aeron gp

Head circumference for each size of the shark aeron gp
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark d skwal 2

Head circumference for each size of the shark d skwal 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

shark d skwal 3

Head circumference for each size of the shark d skwal 3
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark oxo

Head circumference for each size of the shark oxo
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63cm	24.8in

shark ridill 2

Head circumference for each size of the shark ridill 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark rs jet

Head circumference for each size of the shark rs jet
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63cm	24.8in

shark skwal cup

Head circumference for each size of the shark skwal cup
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark skwal i3

Head circumference for each size of the shark skwal i3
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark skwal i3 jet

Head circumference for each size of the shark skwal i3 jet
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark skwal jet

Head circumference for each size of the shark skwal jet
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shark spartan gt pro

Head circumference for each size of the shark spartan gt pro
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63cm	24.8in

shark spartan rs

Head circumference for each size of the shark spartan rs
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63cm	24.8in

Shoei

shoei gt air 3

Head circumference for each size of the shoei gt air 3
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

shoei neotec 3

Head circumference for each size of the shoei neotec 3
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

shoei nxr2

Head circumference for each size of the shoei nxr2
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

shoei x spr pro

Head circumference for each size of the shoei x spr pro
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Simpson

simpson darksome (ece 22.06)

Head circumference for each size of the simpson darksome (ece 22.06)
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

simpson m30

Head circumference for each size of the simpson m30
Size	Head (cm)	Head (in)
M	56 to 58cm	22.0 to 22.8in
XL	60 to 62cm	23.6 to 24.4in
XXL	62 to 64cm	24.4 to 25.2in

simpson m62

Head circumference for each size of the simpson m62
Size	Head (cm)	Head (in)
L	58 to 60cm	22.8 to 23.6in
XL	60 to 62cm	23.6 to 24.4in
XXL	62 to 64cm	24.4 to 25.2in

simpson speed (ece 22.06)

Head circumference for each size of the simpson speed (ece 22.06)
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

simpson venom (ece 22.06)

Head circumference for each size of the simpson venom (ece 22.06)
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in
XXXL	65 to 66cm	25.6 to 26.0in

SMK

smk allterra off road

Head circumference for each size of the smk allterra off road
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	62 to 63cm	24.4 to 24.8in

smk bionic full face kids

Head circumference for each size of the smk bionic full face kids
Size	Head (cm)	Head (in)
S	48 to 49cm	18.9 to 19.3in
M	50 to 51cm	19.7 to 20.1in
L	52 to 53cm	20.5 to 20.9in

smk bionic kids full face

Head circumference for each size of the smk bionic kids full face
Size	Head (cm)	Head (in)
S	48 to 49cm	18.9 to 19.3in
M	50 to 51cm	19.7 to 20.1in
L	52 to 53cm	20.5 to 20.9in

smk gtj open face

Head circumference for each size of the smk gtj open face
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	62 to 63cm	24.4 to 24.8in

smk gullwing

Head circumference for each size of the smk gullwing
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	62 to 63cm	24.4 to 24.8in

smk gullwing v2 sonic

Head circumference for each size of the smk gullwing v2 sonic
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	62 to 63cm	24.4 to 24.8in

smk Stellar

Head circumference for each size of the smk Stellar
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	62 to 63cm	24.4 to 24.8in

smk Typhoon

Head circumference for each size of the smk Typhoon
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	62 to 63cm	24.4 to 24.8in

Spada

spada ace

Head circumference for each size of the spada ace
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	58 to 59cm	22.8 to 23.2in
XL	59 to 60cm	23.2 to 23.6in

spada bastion

Head circumference for each size of the spada bastion
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada hellion

Head circumference for each size of the spada hellion
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada lycan

Head circumference for each size of the spada lycan
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in

spada lycan 06

Head circumference for each size of the spada lycan 06
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada nitride

Head circumference for each size of the spada nitride
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

spada orion 2

Head circumference for each size of the spada orion 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada raiden 2

Head circumference for each size of the spada raiden 2
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada raiden 3

Head circumference for each size of the spada raiden 3
Size	Head (cm)	Head (in)
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada rock 6

Head circumference for each size of the spada rock 6
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada sp1

Head circumference for each size of the spada sp1
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
L	59 to 60cm	23.2 to 23.6in

spada sp18

Head circumference for each size of the spada sp18
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

spada storm

Head circumference for each size of the spada storm
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Stealth

stealth fighter hs711 modular

Head circumference for each size of the stealth fighter hs711 modular
Size	Head (cm)	Head (in)
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

stealth open

Head circumference for each size of the stealth open
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

Tucano Urbano

tucano urbano el jettin 6

Head circumference for each size of the tucano urbano el jettin 6
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

tucano urbano el mettin

Head circumference for each size of the tucano urbano el mettin
Size	Head (cm)	Head (in)
S	56 to 57cm	22.0 to 22.4in
M	57 to 58cm	22.4 to 22.8in
XL	59 to 60cm	23.2 to 23.6in

UFO

ufo aries

Head circumference for each size of the ufo aries
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

ufo echus off road

Head circumference for each size of the ufo echus off road
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XXL	63 to 64cm	24.8 to 25.2in

ufo sheratan

Head circumference for each size of the ufo sheratan
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

Vcan

vcan h128

Head circumference for each size of the vcan h128
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

vcan h151

Head circumference for each size of the vcan h151
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

vcan h162

Head circumference for each size of the vcan h162
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

vcan h272

Head circumference for each size of the vcan h272
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

vcan h276

Head circumference for each size of the vcan h276
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in
XXL	63 to 64cm	24.8 to 25.2in

vcan h586

Head circumference for each size of the vcan h586
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

vcan h589

Head circumference for each size of the vcan h589
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in

vcan v128

Head circumference for each size of the vcan v128
Size	Head (cm)	Head (in)
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

vcan v537

Head circumference for each size of the vcan v537
Size	Head (cm)	Head (in)
XS	53 to 54cm	20.9 to 21.3in
S	55 to 56cm	21.7 to 22.0in
M	57 to 58cm	22.4 to 22.8in
L	59 to 60cm	23.2 to 23.6in
XL	61 to 62cm	24.0 to 24.4in

Helmet size charts