BOOST midsole Imported Lace closure From your daily hustle to a night out with friends, these adidas Ultraboost shoes transition you from one mode to the next. Inspired by an adidas classic, these sneakers have the kind of style that works with any outfit. Then the adidas PRIMEKNIT upper hugs your feet for all-day support. The BOOST midsole gives that supreme cushioning and comfort. 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.