Each mixes white Atomkint uppers, forefoot Zoom Air pucks and a full-length carbon fiber with a thick ZoomX foam midsole for ultimate speed and energy return. Originally launched in October before last year’s elite-only London Marathon, both runners feature high-speed detailing on heel tabs and insoles alike.

Details like the athlete’s initials sit alongside his marathon time of 1:59:40 on each garment, all of which sport Kenyan colors of red, green and black.Īrriving alongside the apparel the re-release of the Nike Air Zoom Alphafly NEXT% and the Nike Air Zoom Pegasus 37. 'The shoe absorbs a lot of pressure from the asphalt,' he says in the documentary.Now in celebration of his glistening career, Nike Running has collaborated with the 36-year-old on a unique Kenya-inspired capsule collection.Ĭomprising a running T-shirt, singlet and wind runner, each garment celebrates Kipchoge’s record-breaking achievements with bold colors and graphics. ZoomX is softer than its predecessors, offering athletes more comfort as it's compressed. Kipchoge said the shoe also helped him recover. 'So for two athletes of equal ability on race day, the one with the shoes is going to beat the one without the shoes.' 'The runner runs the race, but the shoe enables him or her to run it faster for the same effort or ability,' Geoff Burns, a kinesiology researcher at the University of Michigan, previously told Insider of Vaporflys.

The addition of the carbon-fiber plate helps the foam compress and expand quickly.

By comparison, the ethylene foam in older running shoe soles gives back 60% to 70%. After it gets squished, the resilient foam bounces back to its original shape, returning 85% of the energy that the runner used to compress it. The foam in Vaporflys, which Nike named ZoomX, relies on a material called polyether block amide, or Pebax. The key is the shoes' lightweight carbon fiber and foam sole, which minimizes the energy lost per footfall. Account icon An icon in the shape of a person's head and shoulders.

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