| Size | C Narrow | D Medium | E Wide |
|---|---|---|---|
| 6 | 3.3 | 3.5 | 3.7 |
| 6.5 | 3.3 | 3.6 | 3.8 |
| 7 | 3.4 | 3.6 | 3.8 |
| 7.5 | 3.4 | 3.7 | 3.9 |
| 8 | 3.5 | 3.8 | 3.9 |
| 8.5 | 3.6 | 3.8 | 4 |
| 9 | 3.6 | 3.9 | 4.1 |
| 9.5 | 3.7 | 3.9 | 4.1 |
| 10 | 3.8 | 4 | 4.2 |
| 10.5 | 3.8 | 4.1 | 4.2 |
| 11 | 3.9 | 4.1 | 4.3 |
| 11.5 | 3.9 | 4.2 | 4.4 |
| 12 | 4 | 4.3 | 4.4 |
| 12.5 | 4.1 | 4.3 | 4.5 |
| 13 | 4.1 | 4.4 | 4.6 |
| 13.5 | 4.2 | 4.4 | 4.8 |
| 14 | 4.2 | 4.5 | 4.9 |
| 14.5 | 4.3 | 4.5 | 4.9 |
| 15 | 4.3 | 4.6 | 5 |