For all the people who don't seem to understand Marine Corps uniforms, the coat we wear is BLACK. When we wear our Dress Blues, it is a BLACK coat with BLUE pants ( Marine Corps Female Dress Blue Uniform Could Become Same As Men's KPBS Public Media Sharkskin Marine Blue Plain Front Pants Did you know? The Marine Corps' Dress Blues is the only uniform in the U.S. military designated to include the red, white, and blue colors of the American flag. This distinctive uniform USMC Service Dress Sky Blue Poly Wool Gabardine Dress Pants W Stripes 31" x 29 1 2" (NO STRIPES)