![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
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It stretches the limits of performance': the race to make the world's fastest running shoe | Running | The Guardian
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Eliud Kipchoge: How Nike and rabbit pacers helped a Kenyan break the 2-hour marathon barrier in Vienna - The Washington Post
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Kenya's Eliud Kipchoge, the marathon world record holder, runs wearing Nike Vaporfly shoes during his attempt to run a marathon in under two hours in Vienna, Austria, October 12, 2019. REUTERS/Leonhard Foeger
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