Short answer
The Nike Pegasus 42 runs true to size in length with a little extra room at the toes and forefoot compared to the 41. Most runners should buy their normal running size, while wide-footed buyers should consider going up half a size or choosing the Wide version.
Runs true to size
Cross-sizing: what size to buy
Find a shoe you already own and read across to the Nike Pegasus 42 size to buy.
| Reference Shoe | US | EU | ||
|---|---|---|---|---|
| Your usual | Buy | Your usual | Buy | |
| Nike Pegasus 41 | 10 | 10 | 44 | 44 |
| Nike Vomero 18 | 10 | 10 | 44 | 44 |
| Hoka Clifton 9 | 10 | 10 | 44 | 44 |
| Brooks Ghost 16 | 10 | 10 | 44 | 44 |
-
Nike Pegasus 41
Your usual Buy US 10 10 EU 44 44 -
Nike Vomero 18
Your usual Buy US 10 10 EU 44 44 -
Hoka Clifton 9
Your usual Buy US 10 10 EU 44 44 -
Brooks Ghost 16
Your usual Buy US 10 10 EU 44 44
Fit Notes
- Nike Pegasus 41
- Both run true to size in length on closely related lasts, so keep your 41 size in the 42. The difference is volume: the 42's updated last adds toe and forefoot room the 41 lacked. If your 41s crowd your toes, the 42 in the same size solves it; if your 41s fit perfectly with room to spare, expect a slightly roomier feel.
- Nike Vomero 18
- The Vomero 18 runs true to size in length with a snug, structured interior and much taller cushioning. The Pegasus 42 feels lower, firmer, and more breathable in comparison. Buy the same size in both; Vomero wearers moving down will find the Pegasus roomier in the toes but less plush underfoot.
- Hoka Clifton 9
- The Clifton 9 runs true to size in length with a narrow-leaning taper through the midfoot and toes. The Pegasus 42 offers a touch more forefoot give thanks to its updated last. Standard-width runners can hold their size across both models; wide-footed runners face the same choice in each and should prefer the dedicated wide versions.
- Brooks Ghost 16
- The Ghost 16 is nominally true to size with a contoured, snug fit that pushes many runners half up. The Pegasus 42 is the more straightforward true-to-size shoe of the two. Ghost wearers who sized up for snugness can try their true size in the Pegasus first, since its toe box treats feet more generously.
Sizing FAQ
Does the Nike Pegasus 42 run true to size?
Yes in length for most runners, which matches Nike's FAQ guidance. The updated last adds toe and forefoot room over the 41. Wide-footed runners are the exception: Nike's own review summaries suggest they go half a size up.
Is the Nike Pegasus 42 good for wide feet?
Partly. Nike sells Regular and Wide, and the new last helps average-wide feet. But buyer feedback says the Wide feels closer to a roomy standard than a true wide. Very broad feet should try it on first or pick a model with extra-wide options.
Should I size up from the Pegasus 41 to the 42?
No. Buy the same size. The 42 keeps the 41's length and adds forefoot volume, so sizing up would trade fixed toe crowding for heel slip. Only size up if your 41s are already too short in length.
Specs & Sizing
| Weight | 300 g |
|---|---|
| Retail price | $145 |
| Release year | 2026 |
| Upper | Lightweight breathable mesh upper on the updated MR-10 2.0 last |
| Midsole | ReactX foam midsole with a curved full-length Air Zoom unit and molded sockliner |
| Outsole | High-abrasion rubber waffle outsole with flex grooves |
| Technologies | ReactX Foam, Full-Length Air Zoom, MR-10 2.0 Last |
| Fit & sizing | Runs true to size; wide feet consider half size up |