Brand new with original box Flyknit and synthetic upper is breathable, flexible, and lightweight to keep you feeling cool and light. Synthetic material in the midsole adds support and durability where you need it. Nike React technology offers a responsive ride with every step. Foam collar feels comfortable and fits well around your ankle. Geometric outsole pattern helps disperse impact with every step to reduce strain on your joints and feet. Durable rubber outsole ensures long-lasting wear.