IGNITE v2 PWRCOOL Women's Running Shoes:Cooler = Faster. The women's IGNITE v2 PWRCOOL is packed with thermo-regulation technology that helps to keep the body at an optimal temperature, preserving energy. Athletes can focus that extra energy to be faster. This shoe also features IGNITE, a superior cushioning material that disperses impact forces while providing optimal responsiveness and energy return to make you faster. Our unique PU foam formula offers high rebound and ultimate comfort where you need it the most. ForEverFoam is integrated in the heel to provide durability for long-lasting performance.New breathable mesh upper keeps the foot cool.Thermo-regulating Comfortemp tongue lining.Dry-Lex thermo-regulation collar lining.3D silicone print eliminates heel slip.Soft, ultra-thin suede tongue for more comfort.Moulded EVA sockliner hugs the arch.IGNITE Foam midsole for high-rebound cushioning.Chevron flex grooves for increased energy return.ForEverFoam at heel for optimal durability.Flexibility through forefoot flex grooves.Transition Line mimics the natural gait pattern.Smoother toe-off for a fluid ride.EverTrack for durability in high-wear areas.