The Nike Free TR 7 Women's Training Shoe delivers the flexibility and stability your workout demands with an innovative design to keep you moving. This shoe offers flexibility for natural foot movement, along with a locked in feel thanks to the built in molded cage around your heel. Outsole with rubber pods in high-wear zones ensures durability. Closed, tight mesh bootie construction in the upper with reflective accents. A molded cage wraps around your heel to keep it securely in place as you sprint, squat and lift. Tri-star outsole pattern expands and contracts in every direction. Perforated foam tongue for breathability and comfort.