| MEN'S Hyperlite Helmets | ||||
| Fit Size | CM | Shell Size | Comfort Liner Thickness | Top Pad Thickness |
| S | 53.5-55.5 | Medium | 5/8 | 3/8 |
| M | 55.5 57 | Medium | 1/2 | 1/4 |
| L | 57-59 | Medium | 3/8 | 1/4 |
| XL | 59-60.5 | Medium | 1/4 | 1/8 |
| XXL | 60.5-62 | Large | 3/8 | 1/4 |
| XXXL | 62-63.5 | Large | 1/4 | 1/4 |
| WOMEN'S Hyperlite Helmets | ||||
| Fit Size | CM | Shell Size | Comfort Liner Thickness | Top Pad Thickness |
| XS | 52-53.5 | Small | 1/2 | 3/8 |
| S | 53.5-55.5 | Small | 3/8 | 1/4 |
| M | 55.5 57 | Small | 1/4 | 1/8 |
| L | 57-59 | Medium | 3/8 | 1/4 |
| XL | 59-60.5 | Medium | 1/4 | 1/4 |