Saucony Endorphin Speed 5 The Endorphin Speed 5 is built to go fast and feel smooth—whether you’re pushing the pace on track night with friends or you’re chasing a PR. A newly designed nylon plate and responsive PWRRUN PB cushioning come together for snappy transitions and a fast ride. This is speed you can count on. Snappy Ride A full-length semi-rigid nylon plate between two layers of responsive PWRRUN PB foam, giving you a perfect balance of propulsion and cushioning for every stride. Speed Engineered New lightweight engineered mesh for an even more comfortable fit, perfect for fast-paced runs and daily wear. Optimized Outsole Reconfigured outsole with expanded coverage in the heel for greater durability during your quickest strides. Full-length groove enhances your gait cycle, giving you a smoother transition from foot strike to push-off.
