The Nike Alphafly 3, designed for marathon running and achieving personal bests, is the lightest Alphafly ever. This improved model features a wider carbon-fibre plate for enhanced propulsion and stability. It also boasts a fully connected ZoomX foam midsole and a new AtomKnit upper in black for multi-directional containment. Double forefoot Air Zoom units provide energy return, and an integrated knit tongue with padding ensures comfort by reducing pressure on the foot. The shoe is constructed with a textile and synthetic upper and a synthetic sole. MPN: HV6350-001. Closure: lacing. Toe type: round toe.