The Endorphin Speed, the middleman of the Endorphin lineup, is built for up-tempo runs and speedwork. The upper is designed with an engineered sandwiched mesh and 3D print overlays. It's light, breathable and comes with a good bit of structure and support.

Meant for tempo runs (or if you’re feeling bold– daily mileage), the Speed features a full-length S-curved TPU plate, SpeedRoll geometry to roll you through your stride, and PEBA-based PWRRUN PB cushioning. Saucony alleges this midsole material offers 88% energy return and is dramatically more flexible and durable than traditional EVA.