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Our fan-favorite returns with the legendary comfort and stability you’ve loved for years, now with more cushioning and an exciting new look. Ultrafly 5’s medial post and external TPU heel counter offer light pronation support for a stable and smooth run. We upped the stack height to 30 x 25 mm for 2 mm of additional cushioning. Our ZipFoam™ midsole delivers a lightweight and responsive ride, while our OrthoLite® Performance Insole provides a soft step-in feel. The recycled mesh upper provides a secure, comfortable, and breathable fit.
Fitting Chart
Notes About Measuring Your Feet
Because they are flat, rulers can only approximate the size of your foot. Don't forget that manufacturers measure shoe sizes differently, and as a result, sizes may vary. When measuring your foot, ensure that you are standing and wearing the socks or stockings that will be worn with your new shoes when they arrive.
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| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 4 | 35 | 1 | 8.1875 | 20.8 |
| 4.5 | 35 | 1.5 | 8.375 | 21.3 |
| 5 | 35-36 | 2 | 8.5 | 21.6 |
| 5.5 | 36 | 2.5 | 8.75 | 22.2 |
| 6 | 36-37 | 3 | 8.875 | 22.5 |
| 6.5 | 37 | 3.5 | 9.0625 | 23 |
| 7 | 37-38 | 4 | 9.25 | 23.5 |
| 7.5 | 38 | 4.5 | 9.375 | 23.8 |
| 8 | 38-39 | 5 | 9.5 | 24.1 |
| 8.5 | 39 | 5.5 | 9.6875 | 24.6 |
| 9 | 39-40 | 6 | 9.875 | 25.1 |
| 9.5 | 40 | 6.5 | 10 | 25.4 |
| 10 | 40-41 | 7 | 10.1875 | 25.9 |
| 10.5 | 41 | 7.5 | 10.3125 | 26.2 |
| 11 | 41-42 | 8 | 10.5 | 26.7 |
| 11.5 | 42 | 8.5 | 10.6875 | 27.1 |
| 12 | 42-43 | 9 | 10.875 | 27.6 |
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 6 | 39 | 5 | 9.25 | 23.5 |
| 6.5 | 39 | 5.5 | 9.5 | 24.1 |
| 7 | 40 | 6 | 9.625 | 24.4 |
| 7.5 | 40-41 | 6.5 | 9.75 | 24.8 |
| 8 | 41 | 7 | 9.9375 | 25.4 |
| 8.5 | 41-42 | 7.5 | 10.125 | 25.7 |
| 9 | 42 | 8 | 10.25 | 26 |
| 9.5 | 42-43 | 8.5 | 10.4375 | 26.7 |
| 10 | 43 | 9 | 10.5625 | 27 |
| 10.5 | 43-44 | 9.5 | 10.75 | 27.3 |
| 11 | 44 | 10 | 10.9375 | 27.9 |
| 11.5 | 44-45 | 10.5 | 11.125 | 28.3 |
| 12 | 45 | 11 | 11.25 | 28.6 |
| 13 | 46 | 12 | 11.5625 | 29.4 |
| 14 | 47 | 13 | 11.875 | 30.2 |
| 15 | 48 | 14 | 12.1875 | 31 |
| 16 | 49 | 15 | 12.5 | 31.8 |
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 8 | 24 | 7 | 5.8 | 14.6 |
| 8.5 | 25 | 7.5 | 6 | 15.2 |
| 9 | 25 | 8 | 6.2 | 15.6 |
| 9.5 | 26 | 8.5 | 6.3 | 15.9 |
| 10 | 27 | 9 | 6.5 | 16.5 |
| 10.5 | 27 | 9.5 | 6.6 | 16.8 |
| 11 | 28 | 10 | 6.8 | 17.1 |
| 11.5 | 29 | 10.5 | 7 | 17.8 |
| 12 | 30 | 11 | 7.1 | 18.1 |
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 13 | 31 | 12 | 7.5 | 19.1 |
| 13.5 | 31 | 12.5 | 7.6 | 19.4 |
| 1 | 32 | 13 | 7.8 | 19.7 |
| 1.5 | 33 | 14 | 8 | 20.3 |
| 2 | 33 | 1 | 8.2 | 20.6 |
| 2.5 | 34 | 1.5 | 8.3 | 21 |
| 3 | 34 | 2 | 8.5 | 21.6 |
| 3.5 | 35 | 2.5 | 8.6 | 21.9 |
| 4 | 36 | 3 | 8.8 | 22.2 |
| 4.5 | 36 | 3.5 | 9 | 22.9 |
| 5 | 37 | 4 | 9.2 | 23.2 |
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