The Air Jordan 22 (XX2 or XXII) PE - Chicago (Black / Metallic Silver - Varsity Red) were released on October 6, 2007, retailing for $150. They were part of a regional release, in which each city’s version of the Air Jordan 22 (XXII) was only released in that city. The Air Jordan 22 (XXII) was inspired by the F-22 Raptor Strike Fighter. When you look at the F-22 Raptor you see the sharp aerodynamic cuts that can cut through the air like ice. Some of these characteristics of the F-22 can be seen on the Air Jordan 22 (XXII).The Chicago Bulls edition features the official team colors of black and red, along with an interesting pattern around the bottom of the upper. They are constructed from a suede or durabuck material, along with slits in the material which allow the bearer’s foot to breathe. They seem to also feature a strap which goes across the back heel of the shoe, perhaps meant to provide more ankle support and help avoid injury. The clear outsole features red and black inserts, which are actually a new and improved, color coded version of the IPS (Independent Podular Suspension), previously seen on other models. Other technical features include a phylon midsole, new and improved I.P.S. technology, and hardened heel counter that protects even the most vulnerable athlete from a rolled heel, providing a sturdy fit and great comfort.