Women's Endorphin Speed 4The Saucony Endorphin Speed 4 Running Shoe for Women is here to offer you a relationship that goes the distance. Mile after mile, it's the one that will always show up for you. Who helped you fall in love with running? A cheering parent? A PB dedicated friend? Designed as a race day shoe, the Endorphin has quickly proven itself much more, equally capable during long, moderate training sessions and sprints to the finish. Thanks to the "just right"