Lack of Color Sizing
| Hat sizes in CM | 55cm | 56cm | 57cm | 58cm | 59cm | 60cm |
| US hat sizes | 6 7/8 | 7 | 7 1/8 | 7 1/4 | 7 3/8 | 7 1/2 |
| UK has sizes | 6 3/4 | 6 7/8 | 7 | 7 1/8 | 7 1/4 | 7 3/8 |
| Head measurements | 21 5/8 | 22 | 22 1/8 | 22 7/8 | 23 1/4 | 23 5/8 |
| Hat sizes | small | small | medium | medium | large | large |