Since 2018, the Air Force has worn the Army Combat Uniform Operation Camouflage Pattern (OCP) as part of their daily USAF uniform. Check out the wild history of OCPs here. However, there are some exceptions. Several job-specific Airmen can wear olive green or desert tan one-piece flight suits. These include pilots, navigators, and combat systems officers. Exceptions are also made for aircrews, missile crews, and remotely piloted aircraft crews. These Airmen are also authorized to wear a two-piece OCP pattern flight suit.