Sizing Cooper
| S | M | L | XL | XXL | |
| cm | 55 | 57 | 59 | 61 | 63 |
| in | 21.6 | 22.5 | 23.2 | 24 | 24.8 |
Fit Notes
This hat is a stiff style and will loosen around the crown with wear - if it feels stiff when you first try it on follow this guide. If you measure any where in-between sizes, size up and adjust the fit down using the built in adjustable sweatband. For example if you measure 57.5cm size up and choose Large. You can also add some hat fillers to adjust the fit down if you prefer.