Men's Ultraboost shoes for an energized run Sock-like fit; adidas Primeknit upper for support and comfort Midfoot cage and heel counter for support; Boost midsole for a responsive feel Stretchweb outsole flexes naturally for an energized ride; Continental Rubber gives you superior traction This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic.