Men's Saucony Endorphin Speed 5 - Shock Black Size:12.5 The jury is out on

The jury is out on whether blue light actually hurts our eyes or not

The minimum speed an object must achieve to break free from any gravitational attraction of a celestial body without any further propulsion is referred to as escape velocity

Equal parts soft and stretchy

25% Cotton

Men's Saucony Endorphin Speed 5 - Shock Black Size:12.5 The jury is out onThe Saucony Endorphin Speed 5 is built to go fast and feel smooth whether you're pushing the pace on track night or chasing a PR on race day. A redesigned nylon plate paired with responsive PWRRUN PB cushioning delivers snappy transitions and a lively ride that works across tempo runs, intervals, and long efforts. Snappy Ride: Full length semi rigid nylon plate between two layers of PWRRUN PB foam Speed Engineered: Lightweight engineered mesh upper