| EU | UK | US (Ocean Tek Shop Size) | Foot length (CM) |
|---|---|---|---|
| 40 | 6.5 | 7 | 24.4 |
| 40-41 | 7 | 7.5 | 24.8 |
| 41 | 7.5 | 8 | 25.4 |
| 41-42 | 8 | 8.5 | 25.7 |
| 42 | 8 | 9 | 26 |
| 42-43 | 9 | 9.5 | 26.7 |
| 43 | 10 | 10.5 | 27.3 |
| 44 | 10.5 | 11 | 27.9 |
| 44-45 | 11 | 11.5 | 28.3 |
| 45 | 11.5 | 12 | 28.6 |
| 46 | 12.5 | 13 | 29.4 |
| 47 | 13.5 | 14 | 30.2 |
| 48 | 14.5 | 15 | 31 |
| 49 | 15.5 | 16 | 31.8 |
