These men's Free Run Flyknit trainers reinvent your running thanks to a lighter-than-light build and all-new auxetic foam outsole. Built with Nike's famed Flyknit upper that wraps your foot in a sock-like, supremely breathable fit for cool performance every step of the way. Flywire cables lock your foot down, delivering adaptive support where you need it most without the weight, while the rounded heel delivers a more natural, comfortable footstrike. Auxetic foam to the outsole expands when stretched, meaning the pressure of every step is spread out more evenly, keeping your feet comfortable from the first mile to the last.. Material: Textile & Synthetic Upper/Synthetic Sole
