The Air Jordan 20 (XX) Original (OG) - East (Chutney / White - Black) were released on July 1, 2005, and retailed for $175. Tinker Hatfield who had not designed any pair of Air Jordans since the Air Jordan 15 (XV) returned to design these. The concept behind these are an expensive trumpet (musical instrument), racing boots, and motorcycle tires. The design on the midfoot strap is modeled after the trumpets. Hatfield had visited with master trumpet maker David Monette. Monettes presentation trumpets are beautiful and expensive musical instruments that had elaborate cut-outs and engravings. Nikes laser expert, Mark Smith, was brought in to design the midfoot strap. The final design is a complex tapestry of symbols representing MJs experiences and stories. Each symbol is a cryptic puzzle that only die-hard Jordan fans can deduce. The ironic thing is that this particular colorway, dubbed the East as it was part of a regional pack and only released on the East coast, does not feature any engravings on the strap, but instead, across the entire rest of the upper.The XX is truly unique, in that it has a revolutionary cushioning technology called Independent Podular Suspension (IPS) system, as well as a free - floating ankle strap. Other technical specifications include leather, patent leather or nubuck uppers with laser-etched highlights, a phylon midsole supporting twenty I.P.S.(Independent Podular Suspension) pods on the outsole, and an internal shank plate in the midfoot area.