Sergeant and Trumpeter, USMC USMC MALE ENLISTED BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B") USMC MALE OFFICER BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B") USMC Marine Corps Enlisted Dress Blues Blouse Jacket Uniform(NAMED) LockNWalkHarness How to prepare your Dress Blues for the Marine Corps Ball , Heres a quick tutorial on proper medal and ribbon placement, EGA orientation, button alignment, and final uniform preparation (IP) using