Nike's controversial Vaporfly shoes are helping runners set new records, but some think it's 'technology doping.' Here's how they work. | Business Insider India
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Eliud Kipchoge denies platform Nike shoes violate the spirit of sport | London Marathon | The Guardian
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Eliud Kipchoge: How Nike and rabbit pacers helped a Kenyan break the 2-hour marathon barrier in Vienna - The Washington Post
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