On Nike Air Vapormax Mujer Nov. 3, when runners compete in the world’s largest marathon in New Nike Air Max 90 Essential Dames York, there will be extra scrutiny on their shoes, particularly if those shoes are Nike’s Vaporfly Next%.The sneakers have been hotly debated for at least Nike Air Max 90 Femme Blanche a year, and even more so since mid-October, when Kenyan distance runners Eliud Adidas Arkyn Dames Kipchoge and Brigid Kosgei both broke marathon records wearing versions of the sneakers. Nike Internationalist Dames The line uses a carbon-fiber plate packed in foam, which Nike’s research has found can make a runner more efficient. It’s prompted some to question whether Nike Air Max Classic BW Mujer Nike Air Max 90 Womens they qualify as a mechanical performance enhancer.

It’s Adidas NMD Donne unclear as of now who might wear the shoes in New York, contested over a relatively hilly course not known for record-setting times anyway. But it wouldn’t be much of a surprise to see the sneakers among the first crossing the finish line, Adidas NMD Dames especially among the men. Top competitors taking part this year include  Ethiopia’s Lelisa Desisa, who won last year’s New York City Marathon. He’s a Nike-sponsored athlete and part of the group of runners Nike worked with in its Nike Air Vapormax Femme previous efforts to have a runner break the two-hour marathon barrier Nike Air Max 95 Mujer in its Vaporfly shoes.He’s going up against another Nike runner, Geoffrey Kamworor of Kenya, Nike Air Max 270 Mujer who won the New York City Marathon in 2017 and has said he doesn’t believe the Vaporfly Next% provides an unfair advantage. He happens to train with Nike Air Max 270 Femme Kipchoge, who www.palmyreroigt.fr recently wore an unreleased version of the Vaporfly Adidas ZX Flux Womens Next% to become the first person ever to run a marathon in less than two hours.

The International Association of Athletics Federations (IAAF), the governing body for track and field, has been investigating what advantages the shoes Nike Air VaporMax Damen might offer since April. It hasn’t moved to ban them as yet, and so neither have Nike Air Max 90 Femme groups such as New York Road Runners (NYRR), which oversees New York’s marathon. “We are in touch with all the athletes who will be competing in the marathon Adidas Ultra Boost Herren this year and they are all looking forward to competing in  whichever shoes they choose to run in,” Chris Weiller, NYRR’s vice president, said in a statement. The New York City Marathon, he explained, is an IAAF race and follows the rules it sets out, including any restrictions on shoes or clothes.