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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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Joshua Cheptegei's world record criticised, shoe technology accused of turning running into a 'farce' - ABC News
Two hour marathon: Furore erupts over Nike Vaperfly shoe worn by Eliud Kipchoge | news.com.au — Australia's leading news site
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Eliud Kipchoge will wear Nike's controversial shoe for first time in an official race at the London Marathon | CTV News
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