Nike made some bold claims when they introduced their new line of Vaporfly runners back in March. The Swoosh stated the revolutionary tech represented the future of running footwear. They were so confident, in fact, that in reference to the 4 per cent improvement in running efficiency that the shoe apparently gifts its wearer, Nike named it the Zoom Vaporfly 4%. Tuned for long-distance running, the model's Elite incarnation was designed with the intention of breaking the two-hour marathon – a feat it hasn't yet achieved, but it came damn close!
Up until now, Nike's claims have been little more than hearsay. However, a study of the shoe and its claims was conducted by the University of Colorado, Boulder, and its findings have just been published in peer-reviewed research journal Sports Medicine. Given Nike funded the study, the team at Wired paid a visit to the University of Calgary's Human Performance Lab to independently evaluate the claims and supporting research.