Female Officer Blue Dress A (medals) Blue Dress USMC Uniform Guide Officer Blue Dress A (medals) Blue Dress USMC Uniform Guide USMC MALE OFFICER BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B") Uniform more rare than the boat cloak : r USMC Dress Blue Deltas is the first Marine Corps uniform most applicants ever seethe one worn by the recruiter who shook their hands and changed their lives . Dress Blue Deltas feature the