Nike Free TR Twist have been designed using a breathable, flexible fabric which mimics the movement of the bare foot. The upper fabric uses heathered textiles, which looks similar to fabric used in clothing, which helps keep air flowing for breathability and comfort. A memory foam tongue and phylite cushioning at the midsole provides essential cushioning and comfort. The Nike Free TR Twist is ideal for people looking for a lightweight shoe with a range of motion, cushioning and stability for dynamic work outs.