Size guide Mars
Unisex
| US | UK | EU | L × W |
|---|---|---|---|
| 5 | 3 | 37 | 9.4 × 3.0 in (24 × 7.5 cm) |
| 5.5 | 4 | 38 | 9.6 × 3.0 in (24.5 × 7.5 cm) |
| 6 | 5 | 39 | 10.0 × 3.1 in (25.5 × 8 cm) |
| 6.5 | 5.5 | 40 | 10.2 × 3.1 in (26 × 8 cm) |
| 7 | 6 | 41 | 10.4 × 3.1 in (26.5 × 8 cm) |
| 8 | 7 | 42 | 10.6 × 3.3 in (27 × 8.5 cm) |
| 8.5 | 8 | 43 | 11.0 × 3.3 in (28 × 8.5 cm) |
| 9.5 | 9 | 44 | 11.2 × 3.5 in (28.5 × 9 cm) |
| 10 | 9.5 | 45 | 11.4 × 3.5 in (29 × 9 cm) |
| 11 | 10 | 46 | 11.8 × 3.5 in (30 × 9 cm) |