Our interpretation of where tech meets fashion and performance meets design, the Extent NITRO™ features a full-length, lightweight nitrogen-injected midsole that’s encapsulated by a heel stabilizing foam to create an aesthetical and technical balance. FEATURES & BENEFITS : NITRO™: Advanced nitrogen-injected foam designed to provide superior responsiveness and cushioning in a lightweight package, Vegan: Vegan certified product DETAILS : Engineered mesh upper, Full-length NITRO™ midsole, Rubber outsole, TPU heat-cut PUMA Formstrip outline