To pick your appropriate hat size, measure around your head where you would like the base or brim of the hat to sit.
| Size | Hat Size | CM | Inches |
| XS | 6.75 | 54 | 21.2 |
| S | 7 | 56 | 22 |
| M | 7 1/4 | 58 | 22.8 |
| L | 7 1/2 | 60 | 23.6 |
| XL | 7 3/4 | 62 | 24.4 |
| Size | Hat Size | CM | Inches |
| XS | 6.75 | 54 | 21.2 |
| S | 7 | 56 | 22 |
| M | 7 1/4 | 58 | 22.8 |
| L | 7 1/2 | 60 | 23.6 |
| XL | 7 3/4 | 62 | 24.4 |