The Ultraboost 21 is the pinnacle harmonization of weight, cushioning and responsiveness to provide incredible energy return.
The adidas Primeknit+ textile upper provides a sock-like fit, with 6% more Boost capsules and a new Torsion System that provides a 15% increase in forefoot bending stiffness. Continentalâ„¢ Rubber outsole.
This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic.