Alphafly 3 Shoe Size:9.5 Polartec Power Stretch Pro has

Polartec Power Stretch Pro has a nylon face for abrasion resistance

more comfortably off-road

so you get the best of it all

PFC-free GORE-TEX ePE membrane provides breathable weather protection and is laminated to a bio-based nylon face made with fibres derived from plants

these new shades bring a refreshing wave of color to every step

Alphafly 3 Shoe Size:9.5 Polartec Power Stretch Pro hasFine 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