Prototype after prototype. Innovation after innovation. Testing after testing. The pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.
- Sock-like fit
- Lace closure
- adidas Primeknit+ upper
- Textile lining
- Supportive heel counter
- Boost midsole
- Weight: 340 g
- Midsole drop: 10 mm (heel 30.5 mm / forefoot 20.5 mm)
- Stretchweb outsole with Continental Rubber
- Primeblue
- Imported