New Balance 327 vs Nike React Infinity Run 4 Sizing
New Balance 327 vs Nike React Infinity Run 4: side-by-side fit, toe-box width and the exact size to order in each — they fit the same length. Free interactive sizing comparison.
Do the New Balance 327 and Nike React Infinity Run 4 take the same size?
Yes — keep your usual size. A US 10 in the 327 is about a US 10 in the React Infinity Run 4.
How they compare
New Balance 327 → Nike React Infinity Run 4: The New Balance 327 runs true to size and has a slightly narrower toe box compared to the Nike React Infinity Run 4. Your US 10 in the 327 translates to the same size in the React Infinity Run 4.
Nike React Infinity Run 4 → New Balance 327: The Nike React Infinity Run 4 runs true to size and has a slightly wider toe box compared to the New Balance 327. Your US 10 in the React Infinity Run 4 translates to the same size in the 327.
Spec comparison
| Spec | New Balance 327 | Nike React Infinity Run 4 |
|---|---|---|
| Length Fit | True to Size | True to Size |
| Toe Box Profile | Standard | Wide |
| Arch Support | Low / Flat | High |
| Upper Material | Mesh/Suede | Flyknit |
Size conversion: New Balance 327 → Nike React Infinity Run 4
If you wear these US sizes in the 327, here is the size to order in the React Infinity Run 4.
| Your US size in 327 | Recommended React Infinity Run 4 size |
|---|---|
| US 8 | US 8 |
| US 9 | US 9 |
| US 10 | US 10 |
| US 11 | US 11 |
| US 12 | US 12 |
Frequently asked questions
Which runs bigger, the New Balance 327 or the Nike React Infinity Run 4?
The New Balance 327 and Nike React Infinity Run 4 fit the same in length — both are true to size — so you can keep your usual size moving between them.
If I wear a US 10 in the 327, what size is the React Infinity Run 4?
Target a US 10 in the React Infinity Run 4. A US 9 in the 327 maps to about US 9, and a US 11 to about US 11.
Is the 327 wider than the React Infinity Run 4?
The New Balance 327 has a slightly narrower toe box versus the Nike React Infinity Run 4 (standard vs wide). Forefoot room is one of the biggest reasons two shoes at the same length still feel different.
How do the 327 and React Infinity Run 4 compare on support and material?
The 327 pairs low / flat arch support with a mesh/suede upper; the React Infinity Run 4 has high support and a flyknit upper.
Try it: adjust the size and compare live
Verdict
The New Balance 327 runs true to size and has a slightly narrower toe box compared to the Nike React Infinity Run 4. Your US 10 in the 327 translates to the same size in the React Infinity Run 4.
| Spec | New Balance 327 | Nike React Infinity Run 4 |
|---|---|---|
| Length Fit | True to Size | True to Size |
| Toe Box Profile | Standard | Wide |
| Arch Support | Low / Flat | High |
| Upper Material | Mesh/Suede | Flyknit |