As worn by Marty McFly in the film classic Back to the Future II, Nike released the shoe that was never put in production the Nike MAG. 1,500 Shoe pairs will be auctioned on eBay, and 150 are available every day until September 18th. The auction is in aid of the Michael J. Fox Foundation for Parkinson’s disease. The Nike MAG is an exact replica of the shoe Fox wore in the movie.