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    • CommentAuthorsooo
    • CommentTime5 days ago
     

    If a running shoe made you 25 percent faster, would it be fair to wear it in a race? What about 10 percent? Or 2 percent? The Nike Zoom Vaporfly 4% — Adidas ZX Flux Womens a bouncy, expensive shoe released to the public one year ago — raises these questions like no shoe in recent distance running history.

    Nike says the shoes are about 4 percent better than some of its best racing shoes, as measured by how much energy runners spend when running in them. That is an astonishing claim, an efficiency Adidas Tubular Femme improvement worth almost six minutes to a three-hour marathoner, or about eight minutes to a four-hour marathoner.

    And it may be an accurate one, according to a new analysis by The New York Times of race data from about 500,000 marathon and half marathon running times since 2014.

    Using public race reports and shoe records from Strava,Nike Air Max 90 Damen a fitness app that calls itself the social network for athletes, The Times found that runners in Vaporflys ran 3 to 4 percent faster than similar runners wearing other shoes, and Nike Air Max 95 Womens more than 1 percent faster than the next-fastest racing shoe.

    We found that the difference was not explained by faster runners choosing to wear the shoes, by runners choosing to wear them in easier races or by runners switching to Vaporflys after running more training miles. Instead, the analysis suggests that, in a race between Nike Roshe Run Dámské two marathoners of the same ability, a runner wearing Vaporflys would have a real advantage over a competitor not wearing them.

    An onyx stage catches fire and three performers, silhouetted Nike Air Force 1 Femme in the blaze, begin to sing from behind the flames. You can hear Kanye West’s voice, but you can’t make out his face. The first glimpse of him, poking out of the fire, is a shoe.

    But not just any shoe: specifically, a white Adidas Ultra Boost, which until this moment—the Billboard Music Awards in May 2015—has never been worn Nike Air Zoom Spiridon Damen in public.

    West begins his next song and leaps through the flames. He’s dressed all in black except for the two white Ultra Boosts, which hang in the air like exclamation points. “What happens next? Every single store that had [Ultra Boosts] cleared out within the hour,” says Yu-Ming Wu, founder of shoe-culture network Sneaker News, Nike Air Presto Donnawith only a touch of hyperbole.

    • CommentAuthormikehall
    • CommentTime4 days ago