Official Images Of The Nike AlphaFly 4 "Sea Glass/Laser Crimson"

Nike is moving its marathon racing line forward with the AlphaFly 4, the next iteration of the performance series that has become a fixture on elite race courses. The new model builds on the foundation of the AlphaFly 3 rather than overhauling it, carrying over the core architecture that runners already know while making targeted adjustments to weight and underfoot feel.

The Air Zoom units have been repositioned slightly forward, with larger cutouts carved through the midsole to surround them. Nike also trimmed foam from the previous build, a change aimed at reducing weight without altering the overall geometry that made the AlphaFly 3 familiar to long-distance athletes. ZoomX cushioning stays in place, but the AlphaFly 4 introduces ZoomX LT into the stack for an updated ride. The Atomknit upper returns for its lightweight and breathable construction, and the carbon-fiber Flyplate continues through the midsole as the structural backbone of the shoe. The "Sea Glass/Laser Crimson-Phantom-Burgundy Ash" colorway pairs a muted Sea Glass base with Laser Crimson and Burgundy Ash accents across the upper and midsole.