Air Jordan 1 Retro High OG Obsidian UNC Blue fashion and history blend The 'Obsidian UNC Blue' is a shoe with an upper of premium leather in obsidian, white, and UNC blue. The color palette of the shoe was inspired by the iconic colors of Michael Jordan's alma mater, the University of North Carolina. This sneaker boasts the classic silhouette of the high top combined with an iconic Nike Air logo to give historic style blended with modern comfort.