From race day to fast training sessions and everyday use, the Saucony Endorphin Speed is many people's go-to tempo trainer, and with an updated upper and improved outsole, the 5th version is set to continue its popularity. The Saucony Endorphin Speed 5 in White Mutant provides the perfect blend of propulsion and cushioning by using a semi-rigid, winged nylon plate through the midsole, giving you a snappy feel with a softer, more comfortable feel than some race shoes. The wings help add a touch of stability, and responsive, PEBA based PWRRUN PB foam cushions your stride with lightweight bounce. The outsole has been optimized with extra coverage in the heel for improved durability through your fastest strides. It also features a full-length groove to enhance your natural gait and provide a smoother transition from landing to launch. The improved upper uses a lightweight mesh designed to be breathable and comfortable on your fastest days, and to look great in daily wear. Weight 204g Stack height 36-28mm Heel offset 8mm Semi-rigid nylon plate Speedroll technology PWRRUN PB. Designed as a fast-paced shoe, it quickly proved to be much more than that, just as capable during long, moderate training sessions and sprints to the finish line. The energy-efficient PWRRUN PB foam springs back with every step, combined with a winged nylon plate that offers torsional rigidity while maintaining flexibility in the forefoot, for a stable and responsive ride. The SPEEDROLL technology ensures effortless speed and a forward-moving momentum you can rely on every day. An increased amount of rubber covers the heel, extending higher on the shoe and around the edges for added durability. A longitudinal groove running the entire length for increased flexibility and a more natural, smooth transition in your stride cycle. A brand new designed mesh, lightweight for your fast-paced efforts, and made for comfort so you can enjoy them every day. BEST FOR: Speed days/Race days CUSHIONING: PWRRUN PB SOCKLINER: SRS OFFSET: 8mm (36/28mm) WEIGHT: 8.4oz (238g) SUSTAINABILITY: This mo...