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New shoe makes running 4 percent easier, 2-hour marathon possible, study shows | CU Boulder Today | University of Colorado Boulder
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Nike's high-tech Vaporfly sneakers help athletes run 4 percent faster. Should they be banned for providing an unfair advantage? - Vox
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Nike ZoomX Vaporfly: What are the shoes Eliud Kipchoge wore in Ineos 1.59 marathon and why are they controversial? | The Independent | The Independent
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Nike Vaporfly Shoes Helped Eliud Kipchoge Run a Marathon in Under 2 Hours. Should They Be Banned? | Inc.com
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