Arai Helmets

Click the more info link below to see the Arai Helmet Sizing Guide.
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Arai Helmet Sizing Guide

Helmet Size Circumference
(approx. inches)
Hat Size Centimeters
XS 20 7/8 - 21 1/4 6 5/8 - 6 3/4 53-54
S 21 5/8 - 22 6 7/8 - 7 55-56
M 22 3/8 - 22 7/8 7 1/8 - 7 1/4 57-58
L 23 1/4 - 23 5/8 7 3/8 - 7 1/2 59-60
XL 24 - 24 3/8 7 5/8 - 7 3/4 60-61
XXL 24 3/4 - 25 1/4 7 7/8 - 8 62-63
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