The Air Jordan 21 (XX1 or XXI) - Light Graphite / Metallic Silver - University Blue were released on June 3, 2006, and retailed for $180. They feature an all grey upper constructed from suede, along with light blue and metallic silver accents. Many consider these to be one of the simplest Air Jordans, as they were designed really for technology and comfort, and looks were put on the back burner.