Women's Endorphin Speed 4 Running Shoe Women's Performance Running Women's Endorphin Speed 4 Running Shoes Saucony Women's Endorphin Speed 4 Running Shoe in Women's Performance Running Women's Endorphin Speed 4 Running Shoe Dusk Peel Regular (B Women's Endorphin Speed 3 Boston Marathon Edition Women's Performance Women's Endorphin Speed 4 Running Shoes Saucony. The 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" combination of winged nylon plate, SPEEDROLL technology and PWWRUN PB foam, the Endorphin Speed 4 provides the perfect balance of support, rebound and forgiveness. This style is vegan and contains recycled materials. Upper Zonal mesh upper Midsole Smooth SPEEDROLL technology for effortless speed, smooth turnover and propulsive forward motion PWRRUN PB foam is a true unicorn, offering the best combination of cushioning and energy return of any foam on the market. Striking that 'just right' feeling firm enough to propel, soft enough to cushion Re engineered winged nylon plate for vertical reinforcement while maintaining flexibility through the forefoot Outsole XT 900 Outsole Rubber lattice Heel 36mm Forefoot 28mm Offset 8mm Width Regular (B) Weight 7. 2oz (204g)