The legendary Nike Mag will be making its way into stores and hopefully onto your feet later this year but if you can't wait any longer, you can pass the time with these affordable Halloween costume replicas officially licensed by Universal Studios. We gave you a look back in September and they quickly flew off the shelves. Now, they're back in stock and ready for your buying pleasure. Modeled after the famed pair Marty McFly wore in Back to the Future II, the Mags light up using LEDs and come with a built-in USB port for easy charging and even come with a box featuring the movie logo. Although they don't have the self-lacing straps the upcoming version will come with, they still look great with a speckled midsole and white ankle strap. They retail for $99 and can be purchased today over at HalloweenCostumes.com.