Like new, Excellent condition Worn once for less than 5 miles Size 9 (runs small, more like an 8.5) Made to help shave precious time off your personal records. Enjoy the greatest energy return of all our racing shoes while you chase your personal bests and leave the competition in the dust. Full-length ZoomX foam offers an ultra-lightweight and responsive ride. It’s built for speed but also provides cushioning to stay fresh even in the late miles of a marathon. It offers comfort where you need it. Full-length carbon fiber plate delivers a sort of roll-forward feel that makes you want to take on the next step. It gives you a propulsive sensation and helps you smoothly transition through your stride. Both the forefoot and heel offer slightly wider bases for a stable platform, so you can tackle turns on the course with confidence. Part of the Flyknit family—Atomknit material on the upper has a contoured fit while being lightweight and super-breathable. Notched laces offer a secure, but soft lace-up. An integrated knit tongue with lofted padding make for a secure, repeatable fit that helps reduce lace pressure. The sole was designed using data from hundreds of runners. It has different angles of traction placed where you need it, providing grip from foot-strike to toe-off.