Saucony Endorphin Speed 5: The Road Shoe for Tempo Mood, PRs, or Everyday Zooms At Foveo Running — because sometimes you feel the need for speed! If quick kms are your jam--tempo runs, intervals, repeats, strides, race-pace mileage, or even races themselves-- Saucony's now-legendary Endorphin Speed line of "super-trainers" could just be the shoe for you. The Endorphin Speed 5s exist at the sweet spot between a lightweight daily trainer...