Runners and creators love the adidas Ultraboost for its iconic energy-returning feel. This version of the shoes enhances it with 3D Stretchweb that wraps around the full-length BOOST midsole for a trampoline-like feeling underfoot. You'll want to lace in and try it for yourself. 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.