![IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian](https://i.guim.co.uk/img/media/5b565649b2e231edfd00ebbe32d49e4648b49553/338_640_2787_4832/master/2787.jpg?width=445&quality=85&dpr=1&s=none)
IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian
![Bangkok Thailand March 2020 Nike Running Shoes Vaporfly Next Controversial – Stock Editorial Photo © kovop58@gmail.com #351724620 Bangkok Thailand March 2020 Nike Running Shoes Vaporfly Next Controversial – Stock Editorial Photo © kovop58@gmail.com #351724620](https://st3.depositphotos.com/30112694/35172/i/1600/depositphotos_351724620-stock-photo-bangkok-thailand-march-2020-nike.jpg)
Bangkok Thailand March 2020 Nike Running Shoes Vaporfly Next Controversial – Stock Editorial Photo © [email protected] #351724620
![Eliud Kipchoge denies platform Nike shoes violate the spirit of sport | London Marathon | The Guardian Eliud Kipchoge denies platform Nike shoes violate the spirit of sport | London Marathon | The Guardian](https://i.guim.co.uk/img/media/a8624aab5270b96f3f3627567cefd203a4d82c4e/0_58_1140_684/master/1140.jpg?width=445&quality=85&dpr=1&s=none)
Eliud Kipchoge denies platform Nike shoes violate the spirit of sport | London Marathon | The Guardian
![Nike says Bekele wasn't wearing Breaking2 project shoes in London Marathon 2017. – Athletics World News Nike says Bekele wasn't wearing Breaking2 project shoes in London Marathon 2017. – Athletics World News](https://bergansportathletics.files.wordpress.com/2017/04/img_3041.jpg?w=616)
Nike says Bekele wasn't wearing Breaking2 project shoes in London Marathon 2017. – Athletics World News
![IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian](https://i.guim.co.uk/img/media/278bf5db6b5a9f9ccb47f686bc3a94c9e7c9495b/326_192_1100_660/master/1100.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=55e85394b57520d2363ab947d6a2b21e)