Women's Nike Alphafly 4

Women's Road Racing Shoes
Nike's legendary racer delivers more energy with less weight.
Their iconic racing shoe is back and lighter than ever. They've updated the Air Zoom unit for the first time in the Alphafly's history, making it softer and quieter. Advancements to their ZoomX foam deliver more bounce with less weight, opening up your marathon potential.

More energy return with less weight thanks to an updated Air Zoom unit and ZoomX LT foam
Softer and quieter than previous models
Added cushioning under the curved forefoot
Don't let them hear you coming. An updated Air Zoom unit is quieter and delivers a softer feel underfoot with more energy return.
A wide carbon fiber Flyplate unlocks a propulsive sensation while maintaining the stability you need to power through all 26.2 miles.
Two types of foam work together to deliver a lighter, springier ride with smoother transitions. ZoomX foam provides our highest energy return and sits under ZoomX LT foam, the lightest version of Nike's most responsive cushioning.
Keep your cool. An updated Atomknit upper features zones of open-hole mesh for enhanced breathability and midfoot cables for improved containment.

More Details 

Weight: Approx. 188g/6.6oz (Men's US 8.5/Women's US 10)

Heel-to-toe drop: 8mm (Men's US 8.5/Women's US 10)