![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
![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://c02.purpledshub.com/uploads/sites/41/2021/08/SP20_FOOTWEAR_ALPHAFLY_detail7_original_original-crop-66ba908.jpg?webp=1&w=1200)
Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics - BBC Science Focus Magazine
![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
![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://c02.purpledshub.com/uploads/sites/41/2021/08/Alamy_2F3Y8J0-crop-ff47efc.jpg)