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Eliud Kipchoge's footwear sparks debate as critics say the shoes give runners an 'unfair advantage' | Daily Mail Online
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Too much spring in their step? Nike running shoe under scrutiny after record marathon times - GeekWire
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Nike Vaporfly running shoe which helped break Paula Radcliffe's record set to be BANNED | Daily Mail Online
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Should Nike's Vaporfly racing shoes be banned, or is this reasonable technologically-enabled human progress? - GeniusWorks
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Controversial Nike Vaporfly running shoe used by Brigid Kosgei to smash Paula Radcliffe's marathon record set to be BANNED due to foam and carbon fibre sole-plate - FootwearTimes
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Nike's $250 'Vaporfly' running shoe under investigation after record marathon performances | Fox Business
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