| Size | Head Size | Hat Size |
| S | 21 1/2" | 6 3/4 - 6 7/8 |
| M | 22 1/4" | 7 - 7 1/8 |
| L | 23" | 7 1/4 - 7 3/8 |
| XL | 23 7/8" | 7 1/2 - 7 3/4 |
| XXL | 24 5/8" | 7 7/8 - 8 |
| XXXL | 25 3/8" | 8 1/8 - 8 1/4 |
| Size | Head Size | Hat Size |
| S | 21 1/2" | 6 3/4 - 6 7/8 |
| M | 22 1/4" | 7 - 7 1/8 |
| L | 23" | 7 1/4 - 7 3/8 |
| XL | 23 7/8" | 7 1/2 - 7 3/4 |
| XXL | 24 5/8" | 7 7/8 - 8 |
| XXXL | 25 3/8" | 8 1/8 - 8 1/4 |