AlphaFly 3 “Prototype”

The Alphafly 3 prototype is Nike’s latest evolution in marathon racing shoes, designed to deliver exceptional speed and comfort. Featuring a full-length carbon fiber Flyplate that is slightly wider for enhanced stability and smoother transitions, the Alphafly 3 prototype reduces heel width to improve responsiveness. Its Atomknit upper is super thin and lightweight, minimizing weight without sacrificing support. The shoe incorporates dual Air Zoom units in the forefoot combined with a ZoomX foam midsole, creating a “spring plate” effect that propels runners forward efficiently. This innovative design helps reduce energy loss during strides, making the Alphafly 3 prototype ideal for long-distance runners seeking performance gains. The outsole provides reliable grip for race day conditions, although durability is limited. Overall, the Alphafly 3 prototype represents a refined balance of cushioning, propulsion, and stability for marathon athletes.

The Nike Air Zoom Alphafly 3 prototype continues Nike’s tradition of pushing boundaries in marathon footwear technology. Also known as the Nike Alphafly Next 3 prototype or Air Zoom Alphafly Next 3 ‘prototype’, this shoe integrates a retooled Atomknit upper for a snug, lightweight fit and a narrower tongue area to reduce weight further. The full-length carbon fiber plate embedded in the midsole works synergistically with the ZoomX foam and dual Air Zoom pods to deliver outstanding energy return and shock absorption. This combination allows runners to maintain pace even in the later stages of a marathon. The Nike Alphafly prototype 3 features a slightly reduced heel stack compared to its predecessor, meeting race regulations while preserving cushioning. Stability is enhanced by the wider carbon plate and a broad forefoot base, supporting smooth transitions and reducing fatigue. While the outsole grip performs well in wet conditions, it is not designed for long-term durability. The Nike prototype Alphafly 3 is favored by elite athletes for its propulsive feel and race-day performance advantages.