Nike Free Hyperfeel Run Women's Club Pink Running Shoe The highly flexible drop-in midsole offers the natural-motion benefits of Nike Free with the soft, responsive cushioning of Lunarlon. The one-piece, ultra-lightweight Flyknit upper features highly elastic threads that help lock your foot down during multi-directional movements and provide a contoured, supportive fit that moves with you. Pull tab on the heel for easy on and off. Cushlon heel clip for support and stability. Rounded heel for more natural range of motion.