• Dual density EPS liner
• Fully removable polyester moisture wicking liner and cheek pad
• Injection molded polycarbonate shell
• D ring chin strap retention system
• 13 intake / exhaust ports for maximum ventilation

Z1R Helmet Size Chart

	Inches	Centimeters
2XS	20  1/8 - 20 1/2	51 - 52
XS	20 7/8 - 21 1/4	53 - 54
S	21 5/8 - 22	55 - 56
M	22 3/8 - 22 3/4	57 - 58
L	23 1/8 - 23 1/2	59 - 60
XL	24 - 24 3/8	61 - 62
2XL	24 3/4 - 25 1/8	63 - 64
3XL	25 1/2 - 26	65 - 66
4XL	26 1/4 - 26 3/4	67 - 68