The Nike Air Zoom Alphafly Next% is a high-performance carbon-plated racing flat engineered for elite marathoners and serious runners seeking speed and efficiency. Featuring Nike's proprietary Atomknit upper—lightweight, breathable, and adaptive—the shoe provides seamless lockdown with minimal weight. The midsole combines a full-length carbon fiber plate with dual-layer ZoomX foam: a soft, energy-returning top layer and a firmer bottom layer for stability and propulsion. A visible green Zoom Air unit in the forefoot adds responsive cushioning during toe-off. The sleek black-and-white colorway emphasizes its aerodynamic silhouette, while the aggressive rocker geometry promotes forward momentum. Ideal for race day or tempo runs, this shoe delivers exceptional energy return (tested up to 85%+), reduced ground contact time, and superior comfort over long distances. Though designed for competition, many runners adopt it for fast training sessions due to its unmatched responsiveness. Not recommended for daily casual wear due to aggressive stack height and specialized construction. Size 9.5 US shown; fits true to size but may feel snug in the forefoot for wide feet.