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Measurement

Size

Metric

20-1/2

6-1/2
(XXSmall)

52

20-7/8 to 21-1/4

6-5/8 to 6-3/4
(XSmall)

53-54

21-5/8 to 22

6-7/8 to 7
(Small)

55 - 56

22-3/8 to 22-3/4

7-1/8 to 7-1/4
(Medium)

57-58

23-1/8 to 23-1/2

7-3/8 to 7-1/2
(Large)

59-60

23-7/8 to 24-1/4

7-5/8 to 7-3/4
(XLarge)

61-62

24-3/4 to 25-1/8

7-7/8 to 8
(XXLarge)

63-64

25-1/2 to 26-1/4

8-1/8 to 8-3/8
(XXXLarge)

65-67
Use the sizing chart to get the correct size for your helmet. Carefully measure around your head, above the ears and about an inch above your eyebrows.

NOTE: Although many people's heads may measure identically, they may be shaped differently which affects size and fit. After you have selected the proper size, when you receive your helmet it should have a snug, but comfortable fit for optimum performance.