Saucony Endorphin Speed 2 White Black Men Men's Endorphin Speed 4 Running Shoes Saucony ENDORPHIN SPEED 2 Reverie Saucony Australia Saucony Men's Endorphin Speed 2 Running Shoes, Hiking, Trail Promo Saucony Endorphin speed 2 Original Men's running shoes for. 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