BOOST midsole Fitcounter molded heel counter We cater for all, from elite professional athletes and teams to any individual who wants to make sport part of their lives Regular fit Run, balance or pivot - every movement is effortless in these adidas running shoes. The adidas Ultraboost Shoes are engineered for excellence, from the adidas PRIMEKNIT upper that gently wraps your foot to responsive BOOST. A Stretchweb outsole made with Continental Rubber takes bumpy terrain in stride, while a supportive heel counter supports fragile areas just below the ankle. This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic - reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean. The other 50% of the yarn is recycled polyester.