HELMET BOX

Sparco Helmet Sizing Chart

Size CM measurement INCH measurement
XS 53 - 54 20 7/8 - 21 1/4
S 55 - 56 21 5/8 - 22
M 57 - 58 22 1/2 - 22 7/8
L 59 - 60 23 1/4 - 23 5/8
XL 61 - 62 24 - 24 1/2