Last Friday at L.A. Live, Nike launched the public debut of the brand's upcoming Nike+ Basketball line in spectacular fashion. The topper was a Nike+ Slam Dunk Contest, highlighted by a crowd-pleasing acrobatic jam by Jus Fly that simply has to be seen to be believed. On his feet were a pair of Nike Hyperdunk+, set to release on June 29th, that are equipped with Nike+ technology that measures the user's vertical, quickness and hustle. Additionally the Nike+ Basketball app allows you to share your stats and videos. Speaking of which, press play on the video of Jus Fly's outrageous dunk below.