Finding your perfect fit
Discovering the ideal size for your KASK helmet is as easy as measuring the circumference of your head. Position a tape measure just above your ears. In the figure above, the dashed line shows the correct inclination.
| Size | CM | INCHES |
| S | 50-56 | 19 5/8-22 1/8 |
| M | 52-58 | 20 1/2-22 7/8 |
| L | 59-62 | 23 3/8-24 1/2 |