Sena Helmets Size Chart
| Size | Head (centimeters) | Head (inches) |
|---|---|---|
| XS | 53 - 54 | 20 7/8 - 21 1/4 |
| S | 55 - 56 | 21 1/2 - 21 7/8 |
| M | 57 - 58 | 22 1/4 - 22 5/8 |
| L | 58 - 59 | 22 5/8 - 23 |
| XL | 60 - 61 | 23 1/2 - 23 7/8 |
| 2XL | 62 - 63 | 24 1/4 - 24 5/8 |
How to Measure
Wrap a soft, flexible measuring tape horizontally around your head 1 inch above your eyebrows and ears. Pull the tape softly snug, read the length and repeat for accuracy. Use the largest measurement.
Select the helmet size that is closest to your head measurement from the size chart above. If your head measurement falls between two helmet sizes, it is suggested to go with the smaller size.