I’ll never forget the first time I laced up the original Saucony Endorphin Speed, way back in 2020. I had never run in such a fun shoe—a pair that made it seem almost effortless to pick up the pace and encouraged me to commit to speed workouts for the first time in 15+ years of running. It was also the shoe I laced up for my first marathon.
Fast forward four years and three editions later, and the Endorphin Speed 4 hasn’t changed a whole lot—in a good way. I’ve run in versions 1-4, and this might just be my favorite yet. Find out why, in this Saucony Endorphin Speed 4 review.