Puma vs Brooks Shoe Size - Which Runs Smaller?
Puma and Brooks run true to each other. Keep your usual size when switching. If you wear Puma in US 9, start by checking Brooks in US 8.5. Both brands use the same foot-length measurement; the small differences are in last shape, not the conversion formula.
Puma to Brooks size chart
| US Men (Puma) | Puma -> Brooks | Foot length |
|---|---|---|
| 7 | 6.5 | 246mm |
| 8 | 7.5 | 254mm |
| 9 | 8.5 | 262mm |
| 10 | 9.5 | 271mm |
| 11 | 10.5 | 279mm |
Fit verdict
- Puma: True to size (65% of buyers)
- Brooks: True to size (65% of buyers)
Why the sizes differ
Puma and Brooks are close enough to treat as the same size at the brand level. The measured gap is about 2mm.
Puma foot length is measured in millimetres, then mapped to US size. The Brooks starting size stays the same because of each brand fit bias, not a different conversion formula.