Are Nike React Infinity Run True to Size?

Quick Answer
The Nike React Infinity Run generally fits true to size, with a wide, stable platform designed for a secure running fit. Most people can order their usual size comfortably.
Find Your Fit
What's your foot type? Pick one for a direct answer on the Nike React Infinity Run.
What Reddit says: real owners debate Nike React Infinity Run sizing in this thread →
Detailed Sizing Information
Built as a stability-focused running shoe, the React Infinity Run has a wider base and roomier toe box than Nike's lifestyle sneakers, aimed at reducing injury risk over long runs. The engineered mesh upper flexes with the foot without feeling loose.
Sizing Recommendations by Foot Type
- Wide Feet: True to size usually works well thanks to the wider platform.
- Narrow Feet: Consider going down half a size for a more locked-in, performance fit.
- Normal Feet: True to size is usually the best option.
Size Conversion Chart
General US / UK / EU / CM reference for adult sizing. Women's US sizing typically runs about 1.5 sizes larger than the equivalent men's US size. This is a general industry chart, not brand- or model-specific — use it as your numeric starting point, then apply the true-to-size guidance above for this particular shoe.
| US Men's | US Women's | UK | EU | CM |
|---|---|---|---|---|
| 6 | 7.5 | 5.5 | 39 | 24 |
| 6.5 | 8 | 6 | 39.5 | 24.5 |
| 7 | 8.5 | 6 | 40 | 25 |
| 7.5 | 9 | 6.5 | 40.5 | 25.5 |
| 8 | 9.5 | 7 | 41 | 26 |
| 8.5 | 10 | 7.5 | 42 | 26.5 |
| 9 | 10.5 | 8 | 42.5 | 27 |
| 9.5 | 11 | 8.5 | 43 | 27.5 |
| 10 | 11.5 | 9 | 44 | 28 |
| 10.5 | 12 | 9.5 | 44.5 | 28.5 |
| 11 | 12.5 | 10 | 45 | 29 |
| 11.5 | 13 | 10.5 | 45.5 | 29.5 |
| 12 | 13.5 | 11 | 46 | 30 |
| 13 | 14.5 | 12 | 47 | 31 |
| 14 | 15.5 | 13 | 48 | 32 |
Fit Variations by Model and Colorway
Original React Infinity Run
The original release runs true to size with the standard engineered mesh upper.
React Infinity Run Flyknit
The Flyknit version has a slightly more stretchy, sock-like upper, which some find marginally more accommodating for wider feet.
User Experiences and Reviews
Runners generally report that the React Infinity Run fits true to size with a comfortably wide platform, making it a popular pick for those who found other Nike running shoes too narrow.
Comparison to Other Nike Models
| Model | Sizing Compared to React Infinity | Fit Description |
|---|---|---|
| Nike Air VaporMax | True to Size | Similar overall fit and flexibility |
| Nike Air Max Plus | Narrower Fit | Air Max Plus has a snugger, more locked-in fit |
| Nike Air Force 1 | Similar Sizing | Comparable length, less cushioned underfoot |
| Nike Air Max 90 | Similar Sizing | Comparable width, less running-specific |
Common Questions About Nike React Infinity Run Sizing
Does the React Infinity Run fit true to size?
Yes, most runners find it true to size with a comfortably wide fit.
Is the React Infinity Run good for wide feet?
Yes, its wider platform makes it a solid option for wide feet.