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IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian
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Controversial Nike Vaporfly shoes worn by Kipchoge for fastest-ever marathon to be BANNED due to super springy soles – The Sun | The Sun
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Nike stirs the pot with 'gamechanger' running shoe in step with new rules | Athletics | The Guardian
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Eliud Kipchoge denies platform Nike shoes violate the spirit of sport | London Marathon | The Guardian
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