On Cloud 5 vs New Balance 327 Sizing
On Cloud 5 vs New Balance 327: side-by-side fit, toe-box width and the exact size to order in each — New Balance 327 runs bigger. Free interactive sizing comparison.
Should you size down from the On Cloud 5 to the New Balance 327?
Yes — size down a half size. If you wear a US 10 in the Cloud 5, order about a US 9.5 in the 327.
How they compare
On Cloud 5 → New Balance 327: The On Cloud 5 runs about a half-size small and has a slightly narrower toe box compared to the New Balance 327. If you wear a US 10 in the Cloud 5, your target size for the 327 is US 9.5.
New Balance 327 → On Cloud 5: The New Balance 327 runs true to size and has a slightly wider toe box compared to the On Cloud 5. If you wear a US 10 in the 327, your target size for the Cloud 5 is US 10.5.
Spec comparison
| Spec | On Cloud 5 | New Balance 327 |
|---|---|---|
| Length Fit | Runs Small (~½ size) | True to Size |
| Toe Box Profile | Narrow | Standard |
| Arch Support | Moderate | Low / Flat |
| Upper Material | Textile | Mesh/Suede |
Size conversion: On Cloud 5 → New Balance 327
If you wear these US sizes in the Cloud 5, here is the size to order in the 327.
| Your US size in Cloud 5 | Recommended 327 size |
|---|---|
| US 8 | US 7.5 |
| US 9 | US 8.5 |
| US 10 | US 9.5 |
| US 11 | US 10.5 |
| US 12 | US 11.5 |
Frequently asked questions
Which runs bigger, the On Cloud 5 or the New Balance 327?
The New Balance 327 runs longer than the On Cloud 5. The Cloud 5 is the snugger of the two, so you may want extra length going the other way.
If I wear a US 10 in the Cloud 5, what size is the 327?
Target a US 9.5 in the 327. A US 9 in the Cloud 5 maps to about US 8.5, and a US 11 to about US 10.5.
Is the Cloud 5 wider than the 327?
The On Cloud 5 has a slightly narrower toe box versus the New Balance 327 (narrow vs standard). Forefoot room is one of the biggest reasons two shoes at the same length still feel different.
How do the Cloud 5 and 327 compare on support and material?
The Cloud 5 pairs moderate arch support with a textile upper; the 327 has low / flat support and a mesh/suede upper.
Try it: adjust the size and compare live
Verdict
The On Cloud 5 runs about a half-size small and has a slightly narrower toe box compared to the New Balance 327. If you wear a US 10 in the Cloud 5, your target size for the 327 is US 9.5.
| Spec | On Cloud 5 | New Balance 327 |
|---|---|---|
| Length Fit | Runs Small (~½ size) | True to Size |
| Toe Box Profile | Narrow | Standard |
| Arch Support | Moderate | Low / Flat |
| Upper Material | Textile | Mesh/Suede |