A US men’s 8.5 is a US women’s 10 with the common 1.5-size gap used by most sneaker brands. That is UK 7.5, EU 42, about 25.8 cm foot length.
| US | UK | EU | Foot (cm) | |
|---|---|---|---|---|
| Men’s | 8.5 | 7.5 | 42 | 25.8 |
| Women’s | 10 |
UK and EU sizes are usually unisex, so they stay the same — only the US number changes. Check the men’s chart.