Arai Helmets Size Chart

ARAI HELMET SIZE CHART

SIZE	HAT SIZE	INCHES	CENTIMETERS
2XS	6 3/8 - 6 1/2	20 1/8 - 20 1/2	51 - 52
XS	6 5/8 - 6 3/4	20 7/8 - 21 1/4	53 - 54
S	6 7/8 - 7	21 5/8 - 22	55 - 56
M	7 1/8 - 7 1/4	22 1/2 - 22 7/8	57 - 58
L	7 3/8 - 7 1/2	23 1/4 - 23 5/8	59 - 60
XL	7 5/8 - 7 3/4	24 - 24 3/8	61 - 62
XXL	7 7/8 - 8	24 3/4 - 25 1/8	63 - 64

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.