Adidas x 424 x Arsenal F.C. Ultraboost 21Black & Scarlet
adidas continues its relationship with LA-based 424 this season, but brings another partner, Arsenal, on board, too. They all combine to create this pared-back, tech-filled take on the latest Ultraboost 21. It’s all black, save for the hits of vibrant scarlet red — the signature colour of both 424 and The Gunners — and has all the features you’d expect from an adidas runner. Sock-like Primeknit uppers and reworked boost™ cushioning combine for all-day comfort, while a larger Torsion system provides mile-after-mile stability.
- Primeknit Uppers
- Sock-Like Construction
- Torsion System
- boost™ Cushioning
- Continental™ Rubber Outsole
- Style Code: GV9716
| 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 |
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All shipments to United States are Delivery Duty Paid
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.
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