HELMET SIZE

HEAD CIRCUMFERENCE

HAT SIZE

XS

52 – 54cm

20.5” – 21.3”

6 1/2 – 6 3/4

S

54 – 56cm

21.3” – 22.0”

6 7/8 – 7 1/8

M

56 – 58cm

22.0” – 22.8”

7 1/8 – 7 3/8

L

58 – 60cm

22.8” – 23.6”

7 3/8 – 7 5/8

XL

60 – 62 cm

23.6” – 24.4”

7 5/8 – 7 7/8

XXL

62 – 64cm

24.4” – 25.2”

7 7/8 and up