Size Chart: Measure around your head at mid-forehead and just above the ears.
| Inches | Size |
| 21 5/8 | 6 7/8 |
| 22 | 7 |
| 22 3/8 | 7 1/8 |
| 22 3/4 | 7 1/4 |
| 23 1/8 | 7 3/8 |
| 23 1/2 | 7 1/2 |
| 23 7/8 | 7 5/8 |
| 24 1/4 | 7 3/4 |
| 24 5/8 | 7 7/8 |
| 25 | 8 |
- 6 Panel
- Full Pro
- UForm
- Stay-Dri Performance
- SURGE Performance Poly-Serge
- 100% Polyester Twill
- Fitted
- Fitted: 6 5/8-8 (Twelve sizes in 1/8 increments)