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Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian
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Nike unveils new Joyride technology, which fills shoes with tiny beads to make them more comfortable | The Independent | The Independent
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World Athletics denies tipping off Nike over new running-shoe regulations | Athletics | The Guardian
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Nike's high-tech Vaporfly sneakers help athletes run 4 percent faster. Should they be banned for providing an unfair advantage? - Vox
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