| UK | EURO | Height (cm) | Regular (cm) | Wide (cm) | Extra Wide (cm) |
| 4 | 37 | 43 | 33.5-36 | 37.5-40 | 40.5-43 |
| 5 | 38 | 44 | 34.5-37 | 38.5-41 | 41.5-44 |
| 6 | 39 | 45 | 35.5-38 | 39.5-42 | 42.5-45 |
| 7 | 41 | 46 | 37.5-40 | 41.5-44 | 44.5-47 |
| 8 | 42 | 47 | 38.5-41 | 42.5-45 | 45.5-48 |
| 9 | 43 | 48 | 39.5-42 | 43.5-46 | 46.5-49 |
