Women's Nike Alphafly 3 Width:B Data from real runners like

Data from real runners like you was used to place open holes throughout the fabric

and Altra Via Olympus 2

comfortable fit for racing and training

11% spandex

Weight: 242 g (Women's size 8)

Women's Nike Alphafly 3 Width:B Data from real runners likeFine tuned for marathon speed, the Alphafly 3 helps push you beyond what you thought possible. Three innovative technologies power your run: A double dose of Air Zoom units helps launch you into your next step; a full length carbon fiber plate helps propel you forward with ease; and a heel to toe ZoomX foam midsole helps keep you fresh from start to 26. 2. Time to leave your old personal records in the dust. Energy Return for Your Marathon Two