Size chart Smith
Helmets
For Smith helmets, the size that can be ordered includes the interval for the circumference of the head, which you can measure with a tape measure. If no interval is specified, the following sizes serve as a guide:
| Size | Head circumference (cm) |
|---|---|
| S | 51-55 |
| M | 55-59 |
| L | 59-63 |
| XL | 63-67 |
Children
| Size | Head circ. (cm) |
|---|---|
| OS | 48-56 |
| S | 48-53 |
| M | 53-58 |
