An excellent shoe for high intensity conditioning and aerobic style workouts, Nike Free TR Fit FlyKnit shoes allow you to move with flexibility and freedom. These low-profile training shoes provide natural movement that helps facilitate lightness, speed, and agility. With Flywire cables that surround your forefoot, the Nike Free TR Fit FlyKnit gives training-specific security and stability to keep you moving. Upper: Lightweight mesh upper varies in texture for ventilation and FlyKnit allows for personalized fit and flexibility. Padded heel collar enhances comfort. Flat laces reduce irritation. Midsole: Injected midsole unit provides ultra-lightweight cushioning. Molded foam conforms to your heel and helps anchor the foot to the footbed for a secure fit. Removable insole.Outsole: Strategically placed rubber pods on the heel, toe and sides provide durability and traction. Hexagonal flex grooves are hot-knife cut to create six different flex points that allow the foot to move more naturally.