Size Guide
Defiant 1 Sizing
| US WOMEN | US YOUTH | INCHES |
| 4 | 3.5 | 8.2 |
| 5 | 4.5 | 8.5 |
| 6 | 5.5 | 8.9 |
| 7 | 6.5 | 9.3 |
| 7.5 | 6 | 9.4 |
| 8 | 6.5 | 9.5 |
| 8.5 | 7 | 9.7 |
| 9 | 9.9 | |
| 9.5 | 10 | |
| 10 | 10.2 |
| US WOMEN | US YOUTH | INCHES |
| 4 | 3.5 | 8.2 |
| 5 | 4.5 | 8.5 |
| 6 | 5.5 | 8.9 |
| 7 | 6.5 | 9.3 |
| 7.5 | 6 | 9.4 |
| 8 | 6.5 | 9.5 |
| 8.5 | 7 | 9.7 |
| 9 | 9.9 | |
| 9.5 | 10 | |
| 10 | 10.2 |