![Nike Vaporfly: BBC Sport explains the technology & arguments about the controversial trainers - BBC Sport Nike Vaporfly: BBC Sport explains the technology & arguments about the controversial trainers - BBC Sport](https://ichef.bbci.co.uk/news/1024/cpsprodpb/10921/production/_110737876_thumbnailfinalv2.jpg)
Nike Vaporfly: BBC Sport explains the technology & arguments about the controversial trainers - BBC Sport
![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?resize=960,413)
Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine
![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/0270bdd4608c91dd330b91b1ef8f8eaf65c93b37/355_972_4333_2600/master/4333.jpg?width=460&quality=85&auto=format&fit=max&s=b40c510b4efdd5db16f0c54a0a55a660)
Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | 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)