Ramp up the pace while raising your style game. Lace up these adidas Ultraboost running shoes before your next run. The sock-like adidas PRIMEKNIT upper wraps the foot in place while letting air flow. The energy-returning BOOST midsole feels so comfortable and performs even in hot temperatures. The Stretchweb outsole flexes as you move for a smooth, enjoyable 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.