Adidas Ultraboost 21Core Black & Grey
£159 £79
Description
adidas’ Ultraboost gets more innovative year after year, and 2021 sees the introduction of its most futuristic model yet. All the runner’s iconic features are enhanced; the flexible knit upper is redeveloped with Primeblue ocean plastic yarn and the boost™ cushioning is chunkier and more wedged than usual, combining with an all-new Torsion system to maximise energy return.
- Primeknit+ Uppers
- Sock-Like Construction
- Torsion System
- boost™ Cushioning
- Continental™ Rubber Outsole
- Style Code: FY0378
Sizing
Please note sizes may vary between styles, we recommend using size conversions as a guide.
| US Men | US Women | EU | CM | |
|---|---|---|---|---|
| UK 3 | 3.5 | 4.5 | 35 2/3 | 21.8 |
| UK 3.5 | 4 | 5 | 36 | 22.1 |
| UK 4 | 4.5 | 5.5 | 36 2/3 | 22.5 |
| UK 4.5 | 5 | 6 | 37 1/3 | 22.9 |
| UK 5 | 5.5 | 6.5 | 38 | 23.3 |
| UK 5.5 | 6 | 7 | 38 2/3 | 23.8 |
| UK 6 | 6.5 | 7.5 | 39 1/3 | 24.2 |
| UK 6.5 | 7 | 8 | 40 | 24.6 |
| UK 7 | 7.5 | 8.5 | 40 2/3 | 25 |
| UK 7.5 | 8 | 9 | 41 1/3 | 25.5 |
| UK 8 | 8.5 | 9.5 | 42 | 25.9 |
| UK 8.5 | 9 | 10 | 42 2/3 | 26.3 |
| UK 9 | 9.5 | 10.5 | 43 1/3 | 26.7 |
| UK 9.5 | 10 | 11 | 44 | 27.1 |
| UK 10 | 10.5 | 11.5 | 44 2/3 | 27.6 |
| UK 10.5 | 11 | 12 | 45 1/3 | 28 |
| UK 11 | 11.5 | 12.5 | 46 | 28.4 |
| UK 11.5 | 12 | 13 | 46 2/3 | 28.8 |
| UK 12 | 12.5 | 13.5 | 47 1/3 | 29.3 |
| UK 12.5 | 13 | 14 | 48 | 29.7 |
| UK 13 | 13.5 | 14.5 | 48 2/3 | 30.1 |
| UK 13.5 | 14 | 15 | 49 1/3 | 30.5 |
| UK 14 | 14.5 | 15.5 | 50 | 31 |
Shipping
- £6.99 via DPD Standard Service
- £9.99 via DPD Next Working Day Priority Service
- FREE DPD Standard Service on orders over £150.00
Returns
If for some reason you are not happy with your purchase you can return it to us within 30 days for an exchange or refund.
We are now offering FREE UK returns. For more information please visit our returns page