The low-profile, high-intensity Saucony Endorphin Racer 2 Road Running Shoe for women gets you ready to tackle any obstacles ahead. This athletic shoe has FlexFilm overlays for lightweight support, an EVERUN forefoot midsole for more energy return, and a SSL EVA molded heel midsole for lightweight support. A single-layer mesh not only cuts down on weight but also boosts breathability. This shoe features PWRTRAC rubber outsole that provides enhanced traction with every step. EVERUN forefoot midsole PWRTRAC rubber outsole FlexFilm overlays Single-mesh upper Insole: EVERUN/SSL EVA Outsole: Rubber Upper: Mesh/FlexFilm