Adidas Ultraboost 21 Core Black size US 10 UK 8.5 WOMENS in great condition, barely used. Lots of tread left (see pics). Retails new for $180 No box • 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.