The Free 5.0 TR Fit 5 Ladies Fitness Shoes by Nike uses preformed foam in the heel for comfort and support. Its flexible, workout specific outsole moves at the gym, while the strategically placed rubber pods offer lateral stability and traction. - The surrounding Flywire fibers offer Dynamic Support. - The preformed shoe collar ensures a custom fit and optimum grip. - The hexagonal flex grooves provide natural movements and optimum maneuverability. - The Flywire fibers are integrated into the lacing system and thus ensure improved grip. - The specially designed mesh upper provides in various zones maintenance and other areas breathability. Material: Polyester Text Synthetic Plastic (Translated with Google Translate)