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Shoe row will run and run after a spike in records | Sport | The Times
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American track star Allyson Felix launches her own shoe company two years after leaving Nike - CBSSports.com
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Rise of the athletics 'super-shoe': Carbon fibre plates and air pods boost speed | Daily Mail Online
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Allyson Felix Has a Chance to Run to Olympic Track History - The New York Times
Allyson Felix is coming home for final sprint at Race for Change - Los Angeles Times
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Rise of the athletics 'super-shoe': Carbon fibre plates and air pods boost speed | Daily Mail Online
Sotheby's expect to sell rare Nike track shoes for $1 million when auction
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Qué hay detrás de las zapatillas 'Super Spikes' de Nike y el "efecto trampolín" que está pulverizando récords en los JJ.OO. de Tokyo
Allyson Felix Talks Her Olympic Spikes by Saysh and Making History in Them | Complex