The Air Jordan 20 (XX) Original (OG) - Stealth (Black / Stealth - Varsity Red) were released on April 9, 2005, and retailed for $175. They feature an all black color scheme with grey outsole and red inner lining, as well as plenty of patent leather across the upper. Designed by Tinker Hatfield, the concept behind these are an expensive trumpet (musical instrument), racing boots, and motorcycle tires. They may seem weird looking or even ugly at first, but tend to grow on you, as the feature seem to become much more interesting. The design on the midfoot strap is modeled after the trumpets. Hatfield had visited with master trumpet maker David Monette. Monette's presentation trumpets are beautiful and expensive musical instruments that had elaborate cut-outs and engravings. Nike's laser expert, Mark Smith, was brought in to design the midfoot strap. The final design is a complex tapestry of symbols representing MJ's experiences and stories. Each symbol is a cryptic puzzle that only die-hard Jordan fans can deduce. 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.