Arc'teryx Hats' Size Chart
Head sizing is based on the circumference around the head.| Size | S - M | L - XL | One Size Fits All |
| Head Circumference (in) | 213/4 - 221/2 | 223/4 - 231/2 | 213/4 - 231/2 |
| Head Circumference (cm) | 55 - 57 | 58 - 60 | 55 - 60 |
Cart
| Size | S - M | L - XL | One Size Fits All |
| Head Circumference (in) | 213/4 - 221/2 | 223/4 - 231/2 | 213/4 - 231/2 |
| Head Circumference (cm) | 55 - 57 | 58 - 60 | 55 - 60 |
