Endorphin Speed 5 Shoe Size:6.5 Achieves crew running sock non-slip

Achieves crew running sock non-slip security with non-constricting compression sock bands

Maximum comfort - the PWRRUN+ sockliner coupled with PWRRUN midsole provides a soft feel the moment you step in

Stows In Chest Pocket

oiled nubuck leather

Whistle in sleeve provides added security

Endorphin Speed 5 Shoe Size:6.5 Achieves crew running sock non-slipSpeed day race day The Endorphin Speed 5 is built to go fast and feel smoothwhether 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