Nike Unveils "Alphafly 4": A Speed-Unlocking Innovation to Maintain Form Straight to the Finish Line

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  "detected_at": "2026-09-28T11:28:02+00:00",
  "company": {
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    "domain": "nike.com"
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  "data": {
    "url": "https://hashtaglegend.com/th/post/nike-alphafly-4-marathon-running-shoes",
    "title": "Nike Unveils \"Alphafly 4\": A Speed-Unlocking Innovation to Maintain Form Straight to the Finish Line - Hashtag Legend Hong Kong",
    "excerpt": "Marathon enthusiasts are set to witness another milestone in the running world as Nike officially debuts the Alphafly 4 - a completely redesigned super shoe engineered to help runners of all levels maintain speed, confidence, and consistent running form from the starting line to the final stretch. The shoe will officially be available via the Nike app on 29 October. The core objective behind developing the Alphafly 4 was not merely making an already fast shoe faster, but addressing the crucial challenge of fatigue, which often disrupts a runner’s stride in the late stages of a 42.195 km race. Researchers at the Nike Sport Research Lab (NSRL) collaborated closely with world-class athletes to study body mechanics. The result is an innovative evolution that delivers 10% more energy return than its predecessor while reducing overall weight by 5%, ensuring optimal comfort and leg-saving performance. Regarding structural and material innovation, the Alphafly 4 receives comprehensive upgrades across every dimension: The prowess of the Alphafly lineup is backed by historic achievements on the global stage - including Eliud Kipchoge’s sub-2-hour marathon, the late Kelvin Kiptum’s world record, Sifan Hassan’s Olympic gold in Paris, and Addisu Gobena’s recent victory in Sydney. These milestones reinforce that the Alphafly 4 is built not only for elite athletes chasing records, but also...",
    "product": "Alphafly 4",
    "summary": "Nike has officially launched the Alphafly 4, a redesigned super shoe engineered to help runners maintain speed and form, which will be available on October 29.",
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    "image_url": "http://localhost:3000/th/api/media/file/Nike%20Alphafly%204%20cover.jpg",
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    "published_at": "2026-09-28T11:28:02Z",
    "effective_date": "2026-10-29",
    "article_sentence": "Marathon enthusiasts are set to witness another milestone in the running world as Nike officially debuts the Alphafly 4 - a completely redesigned super shoe engineered to help runners of all levels maintain speed, confidence, and consistent running form from the starting line to the final stretch."
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