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1. 已编辑2026/10/25 23:29由 @SneakerDesk

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   … 8mm drop (men's US 8.5/women's US 10); $280 Nike put the Alphafly 4 on sale in a small first drop on 17 September 2026, which sold out within minutes in Europe and North America; the wide release on 29 October brings it to nike.com and select retailers, and a U.S. running retailer lists it as orderable from that date at $279.95 (Nike model IU4686-002). The wait was long: roughly two years and eight months after the Alphafly 3 in January 2024, the longest gap between versions of the line, with Nike saying it held the shoe back rather than ship a minor update. Geometry stays within World Athletics limits: 39 mm of stack at the heel and 31 mm at the forefoot, an 8 mm drop, so the heel sits 1 mm under the 40 mm road-racing cap. Reviewers quote 208 g for a men's US 10, 188 g for a women's 10 and 168 g for a women's 8, so the 'about 188 g' figure depends on the size being weighed. The midsole mixes standard ZoomX with a new lighter ZoomX LT placed above and below the carbon plate; Nike says the LT foam is up to 17 percent lighter and returns 8 percent more energy, and that the whole shoe is 5 percent lighter with 10 percent more energy return than the Alphafly 3. These are Nike lab claims, not runner results. The Flyplate is wider through the forefoot with a more pronounced rocker, and the forefoot Air Zoom pods were rebuilt to be softer, lighter and quieter after athletes complained that the old pods squeaked in races. The Atomknit upper adds midfoot cables and open-mesh venting, the Fast Shot outsole is thin rubber for road grip, and Nike quotes up to 300 miles of use. Coverage frames the shoe as a race-day tool for marathon runners of all paces rather than elites only.

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