Some days start before the sun rises. Other days keep you out after dusk. These adidas Ultraboost running shoes have glow-in-the-dark details that light up in the low light. Their signature, responsive feel — with energy-returning BOOST and soft, adaptive adidas PRIMEKNIT — keeps your feet comfortable, no matter the time of day. 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.