MOST MAJOR FLIGHT HELMETS ARE SIZED BASED ON HEAD CIRCUMFERENCE. HELMET COMES WITH PADDING KITS FOR PROPER EAR CUP AND LINER SPACING. SIZE DICTATES LINER USED WITH HELMET. CALL ANYTIME WITH QUESTIONS.
| Select your head circumference using the left side of the chart to the right and select your helmet sizing. OR You can also use your known hat size using the columns to the right of the chart | Head Size Inches | Head Size CM | Europe | Canada/USA | UK | Helmet Size | |
| 20.4 | 52 | or | 52 | 6 1/2 | 6 3/8 | XXS | |
| 20.8 | 53 | or | 53 | 6 5/8 | 6 1/2 | XS | |
| 21.2 | 54 | or | 54 | 6 3/4 | 6 5/8 | S | |
| 21.6 | 55 | or | 55 | 6 7/8 | 6 3/4 | M | |
| 22.0 | 56.5 | or | 56 | 7 | 6 7/8 | M | |
 | 22.4 | 57 | or | 57 | 7 1/8 | 7 | L |
| 23.2 | 58 | or | 58 | 7 1/4 | 7 1/8 | L | |
| 23.4 | 59 | or | 59 | 7 3/8 | 7 1/4 | L | |
| 23.6 | 60 | or | 60 | 7 1/2 | 7 3/8 | L | |
| 24.0 | 61 | or | 61 | 7 5/8 | 7 1/2 | XL | |
| 24.8 | 62 | or | 62 | 7 3/4-7 7/8 | 7 5/8-7 7/8 | XL | |
| 25.2 | 63 | or | 63 | 8 | 7 7/8 | XL |
