Men's Endorphin Speed 5 Running Shoes Shock / Black Mens The half-length design provides coverage

The half-length design provides coverage whilst allowing freedom of movement at the knee

- External Monomesh Debris Screen

Size - Chest: Measure around the chest horizontally at the widest point

giving you a smoother transition from foot strike to push-off

With Helion™ HF hyper foam and a nylon-blend Speedboard® for high energy return

Men's Endorphin Speed 5 Running Shoes Shock / Black Mens The half-length design provides coverageSaucony Endorphin Speed 5 Built to Go Fast and Feel Smooth The Endorphin Speed 5 is engineered to go fast and feel smoothwhether you're pushing the pace on track night with friends or chasing a personal record. A newly designed nylon plate and responsive PWRRUN PB cushioning combine for snappy transitions and a fast ride. This is speed you can count on. Lightweight, Breathable Upper New lightweight engineered mesh delivers an even more comfortable