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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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World Athletics Announces New Shoe Rules; Nike Alphaflys Are Banned But Vaporflys and Next% Are Ok - LetsRun.com
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Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine
![Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian](https://i.guim.co.uk/img/media/f5670c6db81bb06a5192775ad68df5503dafde3e/1191_273_2309_1386/master/2309.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=f0a9eb842cad09baac87d9c701bd3b0f)