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SUPREME COMFORT
The same super-soft cushioning for runners with a neutral stride.
PRODUCT DETAILS
Lace up and head out in supreme comfort. For the men's Glycerin GTS 21, we added 2mm more super-soft DNA LOFT v3 cushioning for extra plushness, while our innovative GuideRails support system keeps you comfortably in stride. Plus, an updated, streamlined upper adds breathability.
Sustainability
61.1% Recycled materials in the upper
Best For…
Features
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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