O'Neal Helmets size charts
How to measure:
Measure your head circumference horizontally, about 1 cm above the eyebrows.
- Place the tape horizontally around your head
- About 1 cm above the eyebrows and above the ears
- Keep the tape snug, do not pull it tight
O'Neal Helmets Size chart
| Size | Head circumference (cm) |
|---|---|
| XS | 53-54 |
| S | 55-56 |
| M | 57-58 |
| L | 59-60 |
| XL | 61-62 |
| XXL | 63-64 |
O'Neal Defender Size chart
| Size | Head circumference (cm) |
|---|---|
| XS/S/M | 54-58 |
| L/XL | 58-62 |
O'Neal Sonus Youth Size chart
| Size | Head circumference (cm) |
|---|---|
| M | 48-50 |
| L | 51-52 |
O'Neal Trailfinder Evo Size chart
| Size | Head circumference (cm) |
|---|---|
| XS | 51-54 |
| S/M | 54-58 |
| L/XL | 59-63 |
O'Neal Trapper Evo Size chart
| Size | Head circumference (cm) |
|---|---|
| XS | 53-54 |
| S/M | 55-58 |
| L/XL | 59-61 |
More size charts from O'Neal
The figures come from the manufacturers. Between two sizes? Take the larger one if in doubt, or drop us a line: we have most of the parts here and will check for you. You are just as welcome to come by the shop and try them on.