The Nike Air Jordan 1 Retro High “UNC PE” was released by the Jordan brand as an exclusive for the University of North Carolina Tar Heels. Following the likes of the Michigan Wolverines, Oklahoma Sooners and Florida Gators, this PE variation was dedicated to the alma mater of Jordan himself.

Retros are recreations of an earlier model (the original is fittingly called an OG), re-released years later using different shoe-making technology with minor changes in material. That explains why there are so many Air Jordan 1s from different years, even though the OG.