Gently used. Fun & unique color perfect for race day! Love the endorphin speed shoe! Women size 5 Width: M The Endorphin Speed 2 is a natural winner, and now it’s back and better than ever. Between its ultralight PWRRUN PB cushioning and responsive nylon plate, it’s evident this shoe can do it all. From speed work to longer runs, from workouts to race day, it’s more than ready to rock. SPEEDROLL Technology propels you forward effortlessly, so you can run faster, not harder. Versatile energy return Ultralight and springy PWRRUN PB cushioning and a responsive nylon plate give you an edge for both speed workouts and races. Superior fit Fine-tuned heel shape and updated slip-free laces for a locked-in feeling, mile after mile.