The new FAAS 500 v4 pwrCOOL features thermo-regulation technology that helps to keep the body at an optimal temperature, preserving energy. Athletes can focus that extra energy to be faster in their sport. The shoe provides an improved upper fit with a brand-new tooling that is built for the everyday runner who is looking for a minimal, lightweight and cushioning training shoe. Its upgraded to FAAS Foam+ midsole material and the full Evertrack+ outsole ensure enhanced cushioning and durability. The EVERFIT 2.0 and WeaveMesh technologies in the upper stay true to the FAAS philosophy of providing a lightweight yet strong supportive fit. The FAAS 500 v4 from PUMA is an even lighter-weight shoe while keeping the 4mm heel-to-toe drop to encourage a more natural stride. The lateral release grooves and decoupled heel slow down the rate of pronation and provide a more gradual transition from heel strike to midfoot stance. Optimal neutralCELL cushioning and flexibility provides an efficient, smooth ride for the neutral runner.