NMD R1 vs Ultraboost
Both models are from Adidas, but they fit differently: Ultraboost runs about 0.5 US size larger than NMD R1 at the same label.
Equivalent size at US men 9
NMD R1 US 9 = Ultraboost US 8.5 (0.5 US smaller). Keep foot length in millimetres as the shared reference across US, UK, EU and CM systems. A race shoe, boot, clog and lifestyle sneaker can fit differently even inside the same brand. fit_offset: +0 -> +0.25; Foot length: 262 mm.
| Model | Recommended US men | Foot length | UK | EU | CM |
|---|---|---|---|---|---|
| NMD R1 | 9 | 262 mm | 8 | 39 | 26 |
| Ultraboost (equivalent) | 8.5 | 262 mm | 8 | 39 | 26 |