Nike Free TR Focus Flyknit Running Shoes Green Glow/Glacier Blue Women's Size 8.5 Excellent preowned condition with normal signs of light wear shown in photos. With an innovative outsole that expands and contracts with every step the Nike Free TR Focus Flyknit Women's Training Shoe helps keep your foot flexing naturally throughout your workout. A Flyknit upper delivers lightweight breathability to help keep you cool. Flyknit upper with synthetic additions offers supportive breathability that moves with your foot. Dynamic Flywire cables are designed to tighten, locking down your foot for even more support and stability. Strategically placed rubber pods on the outsole give you durability and traction where you need it most.