measurement
| CN (mm) | EU | US | UK |
|---|---|---|---|
| 230 | 36 | 6 | 4 |
| 235 | 37 | 7 | 5 |
| 240 | 38 | 8 | 6 |
| 245 | 39 | 9 | 7 |
| 250 | 40 | 9.5 | 7.5 |
| 255 | 41 | 8 | 7 |
| 260 | 42 | 9 | 8 |
| 265 | 43 | 10 | 9 |
| 270 | 44 | 11 | 10 |
| 275 | 45 | 11.5 | 10.5 |
| CN (mm) | EU | US | UK |
|---|---|---|---|
| 230 | 36 | 6 | 4 |
| 235 | 37 | 7 | 5 |
| 240 | 38 | 8 | 6 |
| 245 | 39 | 9 | 7 |
| 250 | 40 | 9.5 | 7.5 |
| 255 | 41 | 8 | 7 |
| 260 | 42 | 9 | 8 |
| 265 | 43 | 10 | 9 |
| 270 | 44 | 11 | 10 |
| 275 | 45 | 11.5 | 10.5 |
