To ensure a perfect fit, measure the circumference of your head starting in the middle of your forehead and match it with the sizes below.
| Size | Youth | S/M | L/XL |
| Hat Size | 6 1/4 - 6 3/4 | 6 7/8 - 7 1/4 | 7 3/8 - 7 3/4 |
| Inches | 19 3/4 - 21 1/4 in | 21 1/2 - 22 3/4 in | 23 - 24 in |
| CM | 50 - 54 cm | 54 - 58 cm | 56 - 60 cm |