![Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine](https://images.immediate.co.uk/production/volatile/sites/4/2021/08/Alamy_2F3Y8J0-crop-ff47efc.jpg?quality=90&resize=960,413)
Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine
![Nike's controversial Vaporfly running shoe avoids Tokyo 2020 Olympics ban | Esquire Middle East – The Region's Best Men's Magazine Nike's controversial Vaporfly running shoe avoids Tokyo 2020 Olympics ban | Esquire Middle East – The Region's Best Men's Magazine](https://www.esquireme.com/cloud/2021/09/08/nike.jpg)
Nike's controversial Vaporfly running shoe avoids Tokyo 2020 Olympics ban | Esquire Middle East – The Region's Best Men's Magazine
![Nike's high-tech Vaporfly sneakers help athletes run 4 percent faster. Should they be banned for providing an unfair advantage? - Vox Nike's high-tech Vaporfly sneakers help athletes run 4 percent faster. Should they be banned for providing an unfair advantage? - Vox](https://cdn.vox-cdn.com/thumbor/C0qlm_jPHtw5MmpgxbFNpZ6D3SY=/1400x1400/filters:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_asset/file/19339629/947441286.jpg.jpg)
Nike's high-tech Vaporfly sneakers help athletes run 4 percent faster. Should they be banned for providing an unfair advantage? - Vox
![IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian](https://i.guim.co.uk/img/media/278bf5db6b5a9f9ccb47f686bc3a94c9e7c9495b/326_192_1100_660/master/1100.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=55e85394b57520d2363ab947d6a2b21e)
IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian
![Nike's controversial Vaporfly shoe that set records with 'built in secret weapon' might be banned - YouTube Nike's controversial Vaporfly shoe that set records with 'built in secret weapon' might be banned - YouTube](https://i.ytimg.com/vi/VA0Flp8cDhw/maxresdefault.jpg)
Nike's controversial Vaporfly shoe that set records with 'built in secret weapon' might be banned - YouTube
![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=900&quality=85&auto=format&fit=crop&s=3d3d5104fecad732c750effdfeedfa85)
Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian
![Nike Vaporfly running shoe which helped break Paula Radcliffe's record set to be BANNED | Daily Mail Online Nike Vaporfly running shoe which helped break Paula Radcliffe's record set to be BANNED | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/01/14/20/23399218-0-image-a-6_1579035026113.jpg)
Nike Vaporfly running shoe which helped break Paula Radcliffe's record set to be BANNED | Daily Mail Online
![Nike Vaporfly: 'Faster' running shoes will be allowed, World Athletics chiefs say | World News | Sky News Nike Vaporfly: 'Faster' running shoes will be allowed, World Athletics chiefs say | World News | Sky News](https://e3.365dm.com/20/01/768x432/skynews-nike-vaporfly-running_4907488.jpg?20200131162443)