The Nike Men's Free 3.0 Trainers boast a supportive yet breathable TPU mesh upper that simulates the robustness of metal for optimum durability, whilst improving ventilation to help keep your feet cool and dry. With Dynamic Fit technology which wraps the midfoot for a glove-like fit, the trainers have a phylite midsole which provides lightweight cushioning and support. Set upon a durable rubber sole with deep grooves for natural flexibility, the trainers will offer a barefoot-like training experience. - L..