The women's Nike AIR ZM ALPHAFLY NEXT %4 in Sea Glass/Laser Crimson/Phantom/Burgundy Ash is Nike's road racing shoe for the half marathon and marathon. Lighter than the previous generation, it pairs ultralight ZoomX LT foam with ZoomX foam and an Air Zoom unit redesigned for the first time, softer and quieter underfoot. Its wide carbon-fibre Flyplate delivers stable propulsion over the full distance, while the open Atomknit upper provides breathability and containment. 8 mm drop.