Lace up in a pair of Ultraboost Light running shoes and experience energy return like never before. They feature a Light BOOST midsole, our next generation of BOOST and our lightest one yet, designed to keep you going strong through runs of any distance and pace. The Linear Energy Push system, integrated with the outsole, increases stability, and foot-hugging adidas PRIMEKNIT tops it off for a smooth, responsive ride. 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.