We first drooled over them as kids, and recently our dreams came true when NIKE dropped a limited release of the shoe worn by Michael J. Fox in BTTF2. The NIKE Air MAG was once a concept shoe built for the movies, and for decades, sneakerheads went nuts at the possibility of an actual release. That all happened, and the best part is it actually went to help out great cause. Join Tinker Hatfield, Mark Parker and others, as they discuss the design process and conception of the Air MAG. So trill.[YouTube]