👟 On
On Men's Size 8.5
A On men's size 8.5 fits like a standard US 8.5. Here's that in UK, EU and foot length, and what to order if you measure differently.
On runs true to size, so a men's On 8.5 is a standard US 8.5 (UK 7.5, EU 41, about 25.9 cm of foot). Order your usual size.
On 8.5 = US 8.5
UK 7.5 · EU 41 · foot ≈ 25.9 cm
What to order: your usual US size — a US 8.5 wearer takes a On 8.5.
| On size | Fits like (US) | UK | EU | Foot cm |
|---|---|---|---|---|
| 7.5 | 7.5 | 6.5 | 38.5 | 24.7 |
| 8.5 | 8.5 | 7.5 | 41 | 25.9 |
| 9.5 | 9.5 | 8.5 | 42.5 | 26.7 |
⚠️ On (On Running) runs true to size for most, with a snug, performance fit.
← On 7.5 · On 9.5 → · Women's On 8.5
Full On size chart → · Brand size finder →
What size is a On men's 8.5?
It fits like a standard US 8.5 — UK 7.5, EU 41, about 25.9 cm of foot length.
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