Altra Adults' Footwear Size Chart
Altra MEN'S Footwear Sizing Guide
| US Men's | EUR | Foot Length Centimeters (cm) |
|---|---|---|
| 8 | 41 | 26 |
| 8.5 | 42 | 26.5 |
| 9 | 42.5 | 27 |
| 9.5 | 43 | 27.5 |
| 10 | 44 | 28 |
| 10.5 | 44.5 | 28.5 |
| 11 | 45 | 29 |
| 11.5 | 46 | 29.5 |
| 12 | 46.5 | 30 |
| 12.5 | 47 | 30.5 |
| 13 | 48 | 31 |
| 14 | 49 | 32 |
| 15 | 50 | 33 |
| 16 | 51.5 | 34 |
Altra WOMEN'S Footwear Sizing Guide
| US Women's | EUR | Foot Length Centimeters (cm) |
|---|---|---|
| 5.5 | 36 | 22 |
| 6 | 37 | 22.5 |
| 6.5 | 37.5 | 23 |
| 7 | 38 | 23.5 |
| 7.5 | 38.5 | 24 |
| 8 | 39 | 24.5 |
| 8.5 | 40 | 25 |
| 9 | 40.5 | 25.5 |
| 9.5 | 41 | 26 |
| 10 | 42 | 26.5 |
| 10.5 | 42.5 | 27 |
| 11 | 43 | 27.5 |
| 11.5 | 44 | 28 |
| 12 | 44.5 | 28.5 |
| 13 | 46 | 29.5 |