![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=1200&quality=85&auto=format&fit=crop&s=f0a9eb842cad09baac87d9c701bd3b0f)
Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian
![World Athletics gives seal of approval for controversial Nike Vaporfly shoes | Athletics | The Guardian World Athletics gives seal of approval for controversial Nike Vaporfly shoes | Athletics | The Guardian](https://i.guim.co.uk/img/media/e0330d85e02744f2f3f5048839c4f4562f58fb45/0_0_3500_2100/master/3500.jpg?width=1200&quality=85&auto=format&fit=max&s=67730f3216754dd7fbeb720e9376def7)
World Athletics gives seal of approval for controversial Nike Vaporfly shoes | Athletics | The Guardian
![Track and Field: Nike Flyknits Running Shoes | Olympics 2012: How to Compete (Or Dress) Like an Olympic Athlete | TIME.com Track and Field: Nike Flyknits Running Shoes | Olympics 2012: How to Compete (Or Dress) Like an Olympic Athlete | TIME.com](https://olympics.time.com/wp-content/uploads/sites/10/2012/08/oly_gear_004.jpg?w=600)
Track and Field: Nike Flyknits Running Shoes | Olympics 2012: How to Compete (Or Dress) Like an Olympic Athlete | TIME.com
![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)