It replaced the Battle Dress Uniform, which the Marine Corps had shared with the Navy, Army and Air Force.However, both the MCCUU, and its distinctive camouflage pattern, MARPAT, are exclusive to the Marine Corps, which holds the patents to their design.Dismounting for incidental stops en route off of a military installation is no longer permissible excepting legitimate emergencies only.However, due to concerns that the shirts would melt to the skin in the event of a fire or explosion, they are banned when a Marine is deployed to a combat zone.The MCCUU is worn with a webbed rigger's belt earned through the Marine Corps Martial Arts Program.
Desert, Urban, Woodland MCCUU
Two U.S. Marines test out early predecessors to the MCCUU in 2001. The two prototypes feature removable sleeves, a feature that was later abandoned on the finished production version.
The collar of an MCCUU, being worn by a U.S. Marine sergeant in 2002
The rear of an MCCUU, being worn by a U.S. Marine in 2002