HIGH-PERFORMANCE RUNNING SHOES. We were born to move. These adidas Ultraboost 20 Shoes were designed to remind you why you love running. The flexible outsole works with the responsive midsole cushioning for a smooth stride. A stretchy knit upper showcases adidas' commitment to creating a healthier planet with yarn spun from Parley Ocean Plastic. It hugs the foot to provide support where and when you need it.