The best sizing method is to measure your feet by placing your heel against the wall and measure out to the end of your big toe. Then add 1 inch to give you the 'inside measurement'.
Forma Men's Footwear Sizing
| Euro Size | USA Size | Inside Length (in) |
|---|---|---|
| 38 | 4 | 10.04 |
| 39 | 5 | 10.23 |
| 40 | 6 | 10.43 |
| 41 | 7 | 10.63 |
| 42 | 8 | 11.02 |
| 43 | 9 | 11.22 |
| 44 | 10 | 11.42 |
| 45 | 11 | 11.81 |
| 46 | 12 | 12.00 |
| 47 | 13 | 12.20 |
| 48 | 14 | 12.40 |
| 49 | 15 | 12.60 |
| 50 | 16 | 12.80 |
Sizing information is provided by the manufacturer and does not guarantee a perfect fit.