![John O'Regan on Twitter: "Nike Vaporfly running shoe used by Brigid Kosgei to smash Paula Radcliffe record set to be BANNED https://t.co/gWIDgEpNTw https://t.co/yHLYarqPPf" / Twitter John O'Regan on Twitter: "Nike Vaporfly running shoe used by Brigid Kosgei to smash Paula Radcliffe record set to be BANNED https://t.co/gWIDgEpNTw https://t.co/yHLYarqPPf" / Twitter](https://pbs.twimg.com/media/EOUD-hDX4AAxLI6.jpg)
John O'Regan on Twitter: "Nike Vaporfly running shoe used by Brigid Kosgei to smash Paula Radcliffe record set to be BANNED https://t.co/gWIDgEpNTw https://t.co/yHLYarqPPf" / Twitter
![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/SP20_FOOTWEAR_ALPHAFLY_detail7_original_original-crop-66ba908.jpg?quality=90&resize=700,525)
Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine
![ZAPATILLAS VAPORFLY: NO SE PROHÍBEN PERO LA IAAF REGULARÁ SU TECNOLOGÍA | Kirolak | GARA Euskal Herriko egunkaria ZAPATILLAS VAPORFLY: NO SE PROHÍBEN PERO LA IAAF REGULARÁ SU TECNOLOGÍA | Kirolak | GARA Euskal Herriko egunkaria](https://www.naiz.eus/media/asset_publics/resources/000/678/424/article_main_landscape/Vaporfly_Kirolak.jpg)
ZAPATILLAS VAPORFLY: NO SE PROHÍBEN PERO LA IAAF REGULARÁ SU TECNOLOGÍA | Kirolak | GARA Euskal Herriko egunkaria
![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)