Nike's controversial Vaporfly shoes are helping runners set new records, but some think it's 'technology doping.' Here's how they work. | Business Insider India
![The Great Shoe War has switched lanes to the track but Nike still leads the field | Athletics | The Guardian The Great Shoe War has switched lanes to the track but Nike still leads the field | Athletics | The Guardian](https://i.guim.co.uk/img/media/8dd989f70bc471a8dd2970d87c5338501bb88af1/202_231_3187_1912/master/3187.jpg?width=465&quality=85&dpr=1&s=none)
The Great Shoe War has switched lanes to the track but Nike still leads the field | Athletics | The Guardian
![Kenya's Eliud Kipchoge, the marathon world record holder, crosses the finish line wearing Nike Vaporfly shoes during his attempt to run a marathon in under two hours in Vienna, Austria, October 12, Kenya's Eliud Kipchoge, the marathon world record holder, crosses the finish line wearing Nike Vaporfly shoes during his attempt to run a marathon in under two hours in Vienna, Austria, October 12,](https://c8.alamy.com/zooms/9/6f22a54f3f844c86a9b2f403a02b059c/2cmbcxk.jpg)
Kenya's Eliud Kipchoge, the marathon world record holder, crosses the finish line wearing Nike Vaporfly shoes during his attempt to run a marathon in under two hours in Vienna, Austria, October 12,
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