Alphafly 3 Shoe Size:13 it unlocks even more energy

it unlocks even more energy return than before with a slight midsole reduction

Birko-Flor® is a skin-friendly

complete with a reinforced microfiber toe and heel to create a more formed

Patterning

All pockets are made of mesh

Alphafly 3 Shoe Size:13 it unlocks even more energyFine 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