| Size | Circumference | |
| Centimeters (cm) | Inches (in) | |
| Small (S) | 55 | 21.7 |
| Medium (M) | 57 | 22.4 |
| Large (L) | 59 | 23.2 |
How to Measure - Run a piece of string around your head to find the circumference.
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| Size | Circumference | |
| Centimeters (cm) | Inches (in) | |
| Small (S) | 55 | 21.7 |
| Medium (M) | 57 | 22.4 |
| Large (L) | 59 | 23.2 |
