HJC Helmets Size Guide
Please note that the following sizing chart is intended to be used as a guide only. We highly recommend trying on the riding gear before purchase to ensure the best fit.
HELMET SIZE CHART
| Size | Head Circumference (cm) | Hat Size |
| 3XS | 50-51 | 6 1/4 - 6 3/8 |
| 2XS | 51-52 | 6 3/8 - 6 1/2 |
| XS | 53-54 | 6 5/8 - 6 3/4 |
| SM | 55-56 | 6 7/8 - 7 |
| MD | 57-58 | 7 1/8 - 7 1/4 |
| LG | 59-60 | 7 3/8 - 7 1/2 |
| XL | 61-62 | 7 5/8 - 7 3/4 |
| 2XL | 63-64 | 7 7/8 - 8 |
| 3XL | 65-66 | 8 1/8 - 8 1/4 |
| 4XL | 67-68 | 8 3/8 - 8 1/2 |
*The C10 is the only helmet available in 3XS (youth size).
**The RPHA 1, RPHA 12, RPHA 71, RPHA 91, RPHA 11, i71 and C10 are the only helmets available in 2XS.
