Women's Saucony Endorphin Speed 4 RelayBF Its new enhanced shape boasts

Its new enhanced shape boasts a slightly longer back for efficient

Stretch polyester ripstop front for wind protection

and a softer bottle making it easier to squeeze and control the flow of water

so you'll enjoy breathable air mesh panels and straps designed to keep you cool even on the hottest hikes

Women's Saucony Endorphin Speed 4 RelayBF Its new enhanced shape boastsWe're all seeking relationships that go the distance. The Endorphin Speed 4 running shoe is here to fill the role. Designed as a race day shoe, it's 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, this cushioned running shoe provides the perfect balance of support, rebound, and