Adult Helmets
| Size |
Hat |
Head (cm) |
Head (in) |
| 2XS |
6 3/8 - 6 1/2 |
51 - 52 |
20 1/8 - 20 1/2 |
| XS |
6 5/8 - 6 3/4 |
53 - 54 |
20 7/8 - 21 1/4 |
| S |
6 7/8 - 7 |
55 - 56 |
21 5/8 - 22 |
| M |
7 1/8 - 7 1/4 |
57 - 58 |
22 3/8- 22 3/4 |
| L |
7 3/8 - 7 1/2 |
59 - 60 |
23 1/8 - 23 1/2 |
| XL |
7 5/8 - 7 3/4 |
61 - 62 |
24 -24 3/8 |
| 2XL |
7 7/8 - 8 |
63 - 64 |
24 3/4 - 25 1/8 |
| 3XL |
8 1/2 - 8 1/4 |
65 - 66 |
25 1/2 - 26 |
Youth Helmets
| Size |
Head (cm) |
Head (in) |
| S |
47 - 48 |
18 1/5 - 18 7/8 |
| M |
49 - 50 |
19 1/4 - 19 3/4 |
| L |
51 - 52 |
20 - 20 1/2 |
Child Helmets
| Size |
Head (cm) |
Head (in) |
| S/M |
49 - 50 |
18 7/8 - 19 3/4 |
| M/L |
50 - 51 |
19 7/8 - 20 1/4 |
Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.
