New Era Size Chart
| CAP SIZE | 6 7/8 | 7 | 7 1/8 | 7 1/4 | 7 3/8 | 7 1/2 | 7 5/8 | 7 3/4 | 7 7/8 | 8 | 8 1/8 | 8 1/4 |
| CM | 54.9 | 55.8 | 56.8 | 57.7 | 58.7 | 59.6 | 60.6 | 61.5 | 62.5 | 63.5 | 64.5 | 65.4 |
| INCHES | 21 5/8 | 22 | 22 3/8 | 22 3/4 | 23 1/8 | 23 1/2 | 23 7/8 | 24 1/4 | 24 5/8 | 25 | 25 3/8 | 25 3/4 |
| FITTED | 6 7/8 | 7 | 7 1/8 | 7 1/4 | 7 3/8 | 7 1/2 | 7 5/8 | 7 3/4 | 7 7/8 | 8 | 8 1/8 | 8 1/4 |