![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=768,574)
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-5_1579035026096.jpg)
Nike Vaporfly running shoe which helped break Paula Radcliffe's record set to be BANNED | Daily Mail Online
![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/8dd989f70bc471a8dd2970d87c5338501bb88af1/142_217_3250_1951/500.jpg?quality=85&auto=format&fit=max&s=28a889d4d4f52611f78c12318ab40c74)
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/2020/01/15/02/23398764-7887859-The_initial_designs_were_released_in_a_neon_green_colourway_as_w-a-30_1579055350496.jpg)
Nike Vaporfly running shoe which helped break Paula Radcliffe's record set to be BANNED | Daily Mail Online
![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&quality=85&auto=format&fit=max&s=629f91429ce707c3ca1fa50df899d3f4)