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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/f5670c6db81bb06a5192775ad68df5503dafde3e/1191_273_2309_1386/master/2309.jpg?width=1200&height=900&quality=85&auto=format&fit=crop&s=3d3d5104fecad732c750effdfeedfa85)
Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian
![Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles](https://www.thesun.co.uk/wp-content/uploads/2020/01/image-867e035bcb.jpg?strip=all&w=600&h=338&crop=1)
Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles
![Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles](https://www.the-sun.com/wp-content/uploads/sites/6/2020/01/SPORT-PREVIEW-Nike-Vaporfly.jpg?strip=all&quality=100&w=1422&h=800&crop=1)
Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles
![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
![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
![Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles](https://www.thesun.co.uk/wp-content/uploads/2020/01/NINTCHDBPICT000554327533-e1579079445120.jpg)