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Nike's controversial Vaporfly shoes will not be banned. Instead, all prototype technology not currently on the market will be temporarily suspended, The Guardian reports

Nike's controversial Vaporfly shoes will not be banned. Instead, all prototype technology not currently on the market will be temporarily suspended, The Guardian reports
Crystal Cox/Business Insider



The man and woman who hold the marathon world records both compete in Nike Vaporfly shoes.




Vaporflys give runners more energetic efficiency because the shoes' foam-and-carbon sole ensures less energy is lost with each step.




Some researchers and runners think the thickness of the shoes' midsoles should be regulated to avoid unfair advantages.




The Guardian reported Tuesday that the World Athletics organization (which oversees most international track and field events) will not be imposing a blanket ban on Nike Vaporfly shoes.




Rather, World Athletics is expected to announce a temporary halt to all new shoe technology ahead of the Tokyo Olympics this summer, according to The Guardian.




The official decision from World Athletics will be announced Friday.




Visit Business Insider's homepage for more stories.



The man and woman who hold the world records for fastest marathon have something in common: They both compete in Nike Vaporfly shoes.
Both independent and Nike-sponsored studies have showed that the shoes increase athletes' energetic efficiency by 4% or more. Some runners and experts say the footwear confers an unfair advantage and should be regulated.
But the World Athletics organization, which governs most international track and field events, will not be imposing a blanket ban on the Vaporfly shoes, The Guardian reported. According to reporter Sean Ingle's exclusive scoop, World Athletics is expected to rule that all shoes currently on the market will still be legal.
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