![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?w=1029&webp=1)
Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics - BBC Science Focus Magazine
![Nike stirs the pot with 'gamechanger' running shoe in step with new rules | Athletics | The Guardian Nike stirs the pot with 'gamechanger' running shoe in step with new rules | Athletics | The Guardian](https://i.guim.co.uk/img/media/88944abba122485af1bbcadbab61a324bb2ee3eb/1027_1999_2593_1556/master/2593.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=c8ce1180dc69bec601e32d768dc81940)
Nike stirs the pot with 'gamechanger' running shoe in step with new rules | Athletics | The Guardian
![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&quality=85&auto=format&fit=max&s=629f91429ce707c3ca1fa50df899d3f4)
Controversial Nike Vaporflys to escape ban but running shoe rules will tighten | Athletics | The Guardian
![Too much spring in their step? Nike running shoe under scrutiny after record marathon times – GeekWire Too much spring in their step? Nike running shoe under scrutiny after record marathon times – GeekWire](https://cdn.geekwire.com/wp-content/uploads/2019/10/Screen-Shot-2019-10-18-at-9.16.56-AM.png)
Too much spring in their step? Nike running shoe under scrutiny after record marathon times – GeekWire
![New York City Marathon: 'Super shoes' have 'blown distance running into a new stratosphere.' Are they benefitting the sport? | CNN New York City Marathon: 'Super shoes' have 'blown distance running into a new stratosphere.' Are they benefitting the sport? | CNN](https://media.cnn.com/api/v1/images/stellar/prod/231101124226-01-super-shoes-distance-running.jpg?c=16x9&q=h_833,w_1480,c_fill)
New York City Marathon: 'Super shoes' have 'blown distance running into a new stratosphere.' Are they benefitting the sport? | CNN
![Nike Vaporfly Shoes Helped Eliud Kipchoge Run a Marathon in Under 2 Hours. Should They Be Banned? | Inc.com Nike Vaporfly Shoes Helped Eliud Kipchoge Run a Marathon in Under 2 Hours. Should They Be Banned? | Inc.com](https://images.inc.com/uploaded_files/image/1920x1080/getty_1175367731_2000145020009280346_405176.jpg)