Helmet Sizing

Logo Bell® Helments

ADULT HELMET SIZE HEAD CIRC. (IN) HEAD CIRC. (CM) HAT SIZE
XS 20 7/8? - 21 1/4? 53cm - 54cm 6 5/8 - 6 3/4
SM 21 5/8? - 22? 55cm - 56cm 6 7/8 - 7
MD 22 3/8? - 22 3/4? 57cm - 58cm 7 1/8 - 7 1/4
LG 23 1/4? - 23 5/8? 59cm - 60cm 7 3/8 - 7 1/2
XL 24? - 24 3/8? 61cm - 62cm 7 5/8 - 7 3/4
XXL 24 3/4? - 25 1/4? 63cm - 64cm 7 7/8 - 8
YOUTH HELMET SIZE HEAD CIRC. (IN) HEAD CIRC. (CM) HAT SIZE
Youth SM 19 1/2? - 20? 50cm - 51cm 5 7/8 - 6 1/8
Youth MD 20? - 20 1/2? 51cm - 52cm 6 1/8 - 6 3/8
Youth LG 20 1/2? - 21? 52cm - 53cm 6 3/8 - 6 5/8

Vega Helments

ADULT HELMET SIZE HEAD CIRC. (IN) HEAD CIRC. (CM)
XS 20.87 - 21.26 53cm - 54cm
SM 21.65 - 22.05 55cm - 56cm
MD 22.44 - 22.83 57cm - 58cm
LG 23.23 - 23.62 59cm - 60cm
XL 24.02 - 24.41 61cm - 62cm
XXL 24.80 - 25.20 63cm - 64cm
XXXL 25.60 - 26.00 64cm - 65cm
YOUTH HELMET SIZE HEAD CIRC. (IN) HEAD CIRC. (CM)
Youth SM 19.15 - 19.50 49cm - 50cm
Youth MD 20.10 - 20.45 51cm - 52cm
Youth LG 20.87 - 21.26 53cm - 54cm

Ilcon Helments

ADULT HELMET SIZE HEAD CIRC. (IN) HEAD CIRC. (CM)
XXS 21 1/8 53
XS 21 1/4 54
SM 21 5/8 55
MD 22 3/8 57
LG 23 1/8 59
XL 23 1/2 60
XXL 24 61

Z1R® Helments

ADULT HELMET SIZE HAT SIZE
XXS 6 3/8- 6 1/2
XS 6 5/8 - 6 3/4
SM 6 7/8 - 7
MD 7 1/8 - 7 1/4
LG 7 3/8 - 7 1/2
XL 7 5/8 - 7 3/4
XXL 7 7/8 - 8
XXXL 8 1/8- 8 3/4
YOUTH HELMET SIZE HAT SIZE
Youth SM 6 1/8- 6 1/4
Youth MD 6 3/8- 6 1/2
Youth LG 6 5/8- 6 3/4
Youth XL 6 7/8- 7