GAS Men Size Chart
| UK | US | EU | Foot length (cm) |
|---|---|---|---|
| 6 | 7 | 40 | 26 |
| 7 | 8 | 41 | 27 |
| 8 | 9 | 42 | 28 |
| 9 | 10 | 43 | 29 |
| 10 | 11 | 44 | 30 |
| 11 | 12 | 45 | 31 |
How to measure: Stand on a sheet of paper with your heel against a wall, mark the tip of your longest toe and measure heel to toe in cm. Measure both feet and use the longer one.