| Measurement position – Adults | M/L | L/XL | XL/2XL |
| Inside hat length | 37.5 | 39 | 41.5 |
| Hat brim length | 9.5 | 10.5 | 13 |
| Hat height at center | 8.5 | 9.5 | 11.5 |
| Measurement position – Kids | XS | S | M | L |
| Inside hat length | 55 | 56 | 57 | 58 |
| Hat brim length | 5 | 5 | 5 | 5 |
| Hat height at center | 8.5 | 8.5 | 8.5 | 8.5 |