Size Chart

 

Inches

Cm

Hat Size

Helmet Size

20 -21”

52 – 54 cm

6 5/8 – 63/4

XS

21 – 22”

54 – 56 cm

6 7/8 – 7

S

22 – 223/4

56 – 58 cm

7 1/8 – 71/4

M

223/4” – 231/2

58 – 60 cm

7 3/8 – 71/2

L

231/2” – 243/8

60 – 62 cm

7 5/8 – 73/4

XL

  243/8” – 251/8

62 – 64 cm

  7 7/8 – 8

XXL

251/4” – 253/8

64– 66 cm

1/8 – 81/4

XXXL