| Foot length (cm) | EU | US (M) | US (W) | UK |
| 22 cm | 38 | 4 | 5.5 | 3 |
| 22.9 cm | 39 | 5 | 6.5 | 4 |
| 23.7 cm | 40 | 6 | 7.5 | 5 |
| 24.5 cm | 41 | 7 | 8.5 | 6 |
| 25.4 cm | 42 | 8 | 9.5 | 7 |
| 26.2 cm | 43 | 9 | 10.5 | 8 |
| 27.1 cm | 44 | 10 | 11.5 | 9 |
| 27.9 cm | 45 | 11 | 12.5 | 10 |
| 28.8 cm | 46 | 12 | 13.5 | 11 |
| 29.6 cm | 47 | 13 | 4.5 | 12 |
Fits true to size. Hayabusa recommends going down one size for half sizes. 