GS Sizing Guide
| US (GS) | EUR | UK | CHN | Foot Length (cm) | Foot Length (in) |
|---|---|---|---|---|---|
| 1.5Y | 33 | 1 | 205 | 20.5 | 8.1 |
| 2.5Y | 34 | 2 | 215 | 21.5 | 8.5 |
| 3Y | 35 | 2.5 | 220 | 22.0 | 8.7 |
| 4Y | 36 | 3.5 | 230 | 23.0 | 9.0 |
| 5Y | 37 | 4.5 | 235 | 23.5 | 9.2 |
| 5.5Y | 38 | 5 | 240 | 24.0 | 9.4 |
| 6.5Y | 39 | 6 | 245 | 24.5 | 9.6 |
| 7Y | 40 | 6.5 | 250 | 25.0 | 9.8 |
| 8Y | 41 | 7 | 255 | 25.5 | 10.0 |