The adidas UltraBoost 21 Black Active Teal sneakers combine style and performance. With a sleek black design and vibrant teal accents, these sneakers are sure to turn heads. Built with adidas’ innovative UltraBoost technology, they provide superior comfort and energy return, making them ideal for running or everyday wear. Step up your sneaker game with the adidas UltraBoost 21.
English (United States) English (United States) 
French
German
Dutch
Dutch (Belgium)
Italian
Spanish
English (Canada)
German (Switzerland)
English (UK)
Arabic
English (Australia)
Hungarian
Thai
Portuguese
| Grootte VS | Grootte Verenigd Koninkrijk | EU-formaat | Voetlengte (inches) | Lengte voet (cm) |
|---|---|---|---|---|
| 6 | 5.5 | 39 | 9.25 | 23.5 |
| 6.5 | 6 | 39.5 | 9.5 | 24.1 |
| 7 | 6.5 | 40 | 9.625 | 24.4 |
| 7.5 | 7 | 40.5 | 9.75 | 24.8 |
| 8 | 7.5 | 41 | 9.9375 | 25.4 |
| 8.5 | 8 | 42 | 10.125 | 25.7 |
| 9 | 8.5 | 42.5 | 10.25 | 26.0 |
| 9.5 | 9 | 43 | 10.4375 | 26.7 |
| 10 | 9.5 | 44 | 10.5625 | 27.0 |
| 10.5 | 10 | 44.5 | 10.75 | 27.3 |
| 11 | 10.5 | 45 | 10.9375 | 27.9 |
| 11.5 | 11 | 45.5 | 11.125 | 28.3 |
| 12 | 11.5 | 46 | 11.25 | 28.6 |
| 13 | 12.5 | 47 | 11.5625 | 29.4 |
