Pro Tec Snow Helmet Size Chart
| JR | XS | S | M | L | XL | XXL | |
| Inches | 19.3 - 21.3 | 20.1 - 20.5 | 20.9 - 21.3 | 21.7 - 22 | 22.4 - 22.8 | 23.2 - 23.6 | 24 - 24.4 |
| Centimeters | 49 - 54 | 51 - 52 | 53 - 54 | 55 - 56 | 57 - 58 | 59 - 60 | 61 - 62 |
| Hat Size | 6 1/8 - 6 3/4 | 6 3/8 - 6 1/2 | 6 5/8 - 6 3/4 | 6 7/8 - 7 1/8 | 7 1/4 - 7 3/8 | 7 1/2 - 7 5/8 | 7 3/4 - 7 7/8 |
