Appreciate every detail. These running shoes are made for all-around comfort that sticks around through long days on your feet. BOOST delivers incredible energy return and instant comfort to keep you going. An adidas PRIMEKNIT upper wraps the foot with a supportive fit that enhances dynamic movement. 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.