The Air Zoom Vaporfly Next%, worn by Eliud Kipchoge in his unsanctioned sub-two hour marathon, will be eligible for the Tokyo Olympics under new rules that permit the technology as long as the models are available at retail. The Eager Beavertons are scheduled to release a limited number online by Apr. 30, the deadline for the Aug. Olympics. They also are expected to release two more models by then to meet the deadline requirements and technical specifications by then, according to the Wall Street Journal. Among them are the Nike Air Zoom Alphafly Next% that incorporates air in the forefoot ... Log in to view full article.