A properly fitted helmet should cover half your forehead or sit approximately 2 fingers above your eyebrows.
Measure the circumference of your head from your forehead, above your ears and to the back of your head.
Kabuto Helmet Sizing Chart
| CIRCUMFERENCE (CM) | |
| XS | 54 - 55 |
| S | 55 - 56 |
| M | 57 - 58 |
| L | 59 - 60 |
| XL | 61 - 62 |
| XXL | 63 - 64 |
