![TOKYO, JAPAN, MARCH 18. 2021: Nike running shoes ALPHAFLY NEXT%. Controversial athletics shoe on legs of professional athlete running on the road. Official white shoe for Tokyo Olympics 2020 marathon Stock Photo | Adobe Stock TOKYO, JAPAN, MARCH 18. 2021: Nike running shoes ALPHAFLY NEXT%. Controversial athletics shoe on legs of professional athlete running on the road. Official white shoe for Tokyo Olympics 2020 marathon Stock Photo | Adobe Stock](https://as2.ftcdn.net/v2/jpg/04/21/24/25/1000_F_421242512_QoI4NUnhmJD5P8cZcErLHSREcrtRexvv.jpg)
TOKYO, JAPAN, MARCH 18. 2021: Nike running shoes ALPHAFLY NEXT%. Controversial athletics shoe on legs of professional athlete running on the road. Official white shoe for Tokyo Olympics 2020 marathon Stock Photo | Adobe Stock
![TOKYO, JAPAN, MARCH 18. 2021: Nike running shoes ALPHAFLY NEXT%. Controversial athletics shoe on legs of professional athlete running on the road. Off Stock Photo - Alamy TOKYO, JAPAN, MARCH 18. 2021: Nike running shoes ALPHAFLY NEXT%. Controversial athletics shoe on legs of professional athlete running on the road. Off Stock Photo - Alamy](https://c8.alamy.com/comp/2F3Y7GP/tokyo-japan-march-18-2021-nike-running-shoes-alphafly-next-controversial-athletics-shoe-on-legs-of-professional-athlete-running-on-the-road-off-2F3Y7GP.jpg)
TOKYO, JAPAN, MARCH 18. 2021: Nike running shoes ALPHAFLY NEXT%. Controversial athletics shoe on legs of professional athlete running on the road. Off Stock Photo - Alamy
![A guest is seen wearing black Nike outfit with Balenciaga sneakers... | Black nike outfit, Black nikes, Nike outfits A guest is seen wearing black Nike outfit with Balenciaga sneakers... | Black nike outfit, Black nikes, Nike outfits](https://i.pinimg.com/736x/0e/40/95/0e409554e48e463e421bca4e2ba1fd96.jpg)
A guest is seen wearing black Nike outfit with Balenciaga sneakers... | Black nike outfit, Black nikes, Nike outfits
![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)