The Air Jordan 21 (XX1 or XXI) Low - Black / Metallic Silver - Varsity Red were released on November 2, 2006, and retailed for $135. They feature a black suede upper with red accents,but are a low top version of the Air Jordan 21 (XXI). They still feature technical specifications such as breathable textile uppers, a double-overlasted phylon midsole supporting four I.P.S.(Independent Podular Suspension) pods on the outsole.