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Nike Alphafly 4 and Race-Day System launch

Updated 4 times since CLSTR started tracking revisions of this situation.

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2026-09-30 17:30 UTC → 2026-10-14 19:49 UTC · added removed

Nike has announced the release of the Alphafly 4, the fourth generation of its premier marathon racing shoe. The new model is designed to improve efficiency, reportedly being 5 per cent lighter than its predecessor while offering a 10 per cent increase in energy return. Technical specifications include the introduction of ZoomX LT foam, a new seamless Atomknit upper, revised Air Zoom units, and a carbon-fiber Flyplate. The ZoomX LT foam is noted as being up to 17 per cent lighter and providing 8 per cent more energy return. The redesign aims to maintain performance during the late stages of long-distance races when fatigue sets in. On 29 September 2026, Nike introduced a broader footwear strategy titled the ‘Race-Day System of Speed’. This ecosystem moves away from a traditional product hierarchy to offer three distinct models: the Apex, the Alphafly 4, and the Swooshfly. This lineup The Swooshfly is intended to provide personalized options for athletes ranging from elite marathoners aimed at runners seeking an accessible introduction to first-time competitive racers. Within this system, the carbon-plated footwear. The Nike Apex serves as the flagship model for maximum performance. It features dual a double-stacked Air Zoom units in unit configuration under the forefoot, a redesigned Flyplate, and a lighter, more reactive ZoomX LT foam. Nike claims the Apex configuration provides up to 40% more energy return than the previous Alphafly 3 model while being 10% lighter. Technical details for the Apex include The shoe utilizes a 40-millimeter stack height at both the heel and forefoot to create a zero-drop geometry, alongside Goatek and Fast Shot rubber technologies for traction. and a lightweight Flyknit X upper. The Apex is scheduled to become available in for release on 7 January 2027. 2027, with a retail price of $350. The Alphafly 4 is scheduled for general release on 29 October 2026, with at a retail price of AUD$400.

Versions

  1. 2026-10-14 19:49 UTC Nike Alphafly 4 and Race-Day System launch
  2. 2026-09-30 17:30 UTC Nike Alphafly 4 and Race-Day System launch
  3. 2026-09-30 15:21 UTC Nike Alphafly 4 and Race-Day System launch
  4. 2026-09-23 00:22 UTC Nike Alphafly 4 product launch
  5. 2026-09-21 05:45 UTC Nike Alphafly 4 product launch

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