How to Measure Hat Size
The best way to measure hat size is by using a tape measure. Place the tape measure around the head about one inch above the ears, and take note of the size.
Hat Size Chart:
| Metric | Inches | USA / Canada | Universal |
| 53 | 21 | 6 5/8 | XS |
| 54 | 21 1/4 | 6 3/4 | S |
| 55 | 21 3/4 | 6 7/8 | M |
| 56 | 22 1/8 | 7 | M |
| 57 | 22 1/2 | 7 1/8 | ML |
| 58 | 22 7/8 | 7 1/4 | L |
| 59 | 23 1/4 | 7 3/8 | XL |
| 60 | 23 3/4 | 7 1/2 | XL |
| 61 | 24 1/4 | 7 5/8 | XXL |
| 62 | 24 1/2 | 7 3/4 | 3X |
| 63 | 24 7/8 | 7 7/8 | 4X |
