NEW YORK: Nike, the world’s biggest sportswear firm, is launching a new version of its Nike+ running app that offers users preferential access to the hottest new sneakers, raising its game as competition heats up in the fitness tracking business. Nike made the announcement at a glitzy event in New York at which it also launched a series of new products including self-lacing shoes, transparent air-filled soles and soccer cleats made from a polymer that prevents mud from sticking to the sole. Nike Chief Executive Mark Parker said the new version of the app - set to be launched in the US market in June and later elsewhere - would offer a more tailored service, including personalised product recommendations and customised training tips. Nike+ users also will have exclusive access to new products such as HyperAdapt 1.0, a shoe with an in-sole motor that can tighten and loosen laces to respond to an athlete’s motion.