If you ever thought about owning one of the rarest, most incredible shoes ever produced, then now is your shot. We heard recently that Nike may be releasing these sometime soon, but up for sale now at Proflies in History Auctions is one of the Nike "Mag" auto-lacing shoes produced for Marty McFly to wear during Back to the Future II.The "Mag" was self-lacing with features, like the blue/green cement print, that went onto an extremely rare Nike Hyperdunk. Kanye West said the glowing Nike symbol gave him inspiration for the glow in the dark soles on his Air Yeezys. These are estimated to sell for somewhere between $12,000 to $15,000, so if you really want these, it will cost you. But will another pair ever be for sale anywhere else?