NBC’s Grimm has teamed up with Nike, Tinker Hatfield, and the OHSU Doernbecher Children’s Hospital for two unique renditions of the Air Jordan 10 Retro for charity, and they’ll be available beginning on April 15th exclusively through eBay auctions. Only four pairs of each colorway exist, but on top of those eight pairs, Nike will also auction one one pair each that feature the autographs of both Tinker and Michael Jordan. The bidding starts at $1,000 for the non-autographed pairs and $2,000 for the autographed pairs, and all proceeds will go toward the Grimmster Endowment at OHSU Doernbecher Children’s Hospital. We’ll bring you the live auction links when they go live tomorrow, but in the meantime, get a first look at the Air Jordan 10 “Grimm” below and read more about the charitable initiative on Nike News.