Despite high ratings among our testers, staff, and even my PT, I never laced up an Endorphin Speed that I liked—until now. I chalk up my distaste of the first three Endorphin Speeds to their fit. Past ...

Few of you are coming to me with a focus on your one mile pace, so we’re looking at running workouts that are going to test your speed and improve your endurance. There are tons of ways to incorporate ...

Here at Runner’s World, we love nothing more than trying the latest and greatest shoes, tech, and apparel. That’s why we do so much research and gear testing each year. We only recommend products that ...