Size

XS
Sm
Md
Lg
XL
XXL
XXXL

Hat Size

6 1/2 - 6 5/8
6 3/4 - 6 7/8
7 - 7 1/8
7 1/4 - 7 3/8
7 1/2 - 7 5/8
7 3/4 - 7 7/8
8 - 8 1/8

Helmet Sizing Tips

1. You should start by wrapping a measuring tape around your head about a 1.2cm (half an inch) above your eyebrows.
2. Since a helmet should be snug so it doesn't come off in the event of an accident, you need to pull the tape comfortably tight in order to ensure the best results.
3. Make sure you get precise results by measuring a few times trying to get the same result every time. If you get different measurements take the largest one.

Suomy Sizing Chart

Centimetres                Inches

53 cm - 54 cm         20 1/2" - 20 7/8"
55 cm - 56 cm         21 1/4" - 21 5/8"
57 cm - 58 cm         22" - 22 1/2"
59 cm - 60 cm         22 7/8" - 23 1/4"
61 cm - 62 cm         23 5/8" - 24"
63 cm - 64 cm         24 1/2" - 24
65 cm - 66 cm         25 1/4" - 25 5/8"

Child Sizes: S - 47-48, M 49-50, L 51-52, XL 53-54