Saucony Endorphin Speed 5 Women's Vizired Size:10.5 the shoe’s innovative Bounceboard construction the shoe’s innovative Bounceboard construction propels you forward with power not your feet The result is a ride that feels lively on faster efforts but never punishing on longer ones — a genuine one shoe solution for runners who don't want a dedicated racer taking up space in the closet long runs and racing Category Tempo racing trainer Support Neutral Cushioning High Midsole Full length PWRRUN PB Plate Full length nylon Upper Engineered hexagon mesh Outsole XT 900 rubber with exposed PWRRUN PB Stack height 36mm heel 28mm forefoot Heel to toe drop 8mm Weight Approximately 238g 8