Swift, light and even more effortless than before. These adidas Ultraboost running shoes have a slip-on design that gets you out the door fast and a soft upper that adapts to your foot for a barely-there feel. The Boost midsole returns energy endlessly as you rack up the miles and a flexible sole keeps your stride smooth over blacktop, dirt and slick surfaces. Whatever the distance, whatever the destination, enjoy the ride.This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn. No virgin polyester.