Giro Unisex Helmet Size Guide
Giro Unisex Helmet Size Guide
| Size | Head Circumference (cm) |
| S | 52-55.5 |
| M | 55.5-59 |
| L | 59-62.5 |
| XL | 62.5-65 |
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| Size | Head Circumference (cm) |
| S | 52-55.5 |
| M | 55.5-59 |
| L | 59-62.5 |
| XL | 62.5-65 |