US Marine Corps GI Dress Uniform Pants, Blue Army Navy Outdoors Air Force amn nco snco 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 I see Marines both wear blue and white pants for full dress uniforms. In which case they use which? : r uniformporn There is now no Marine uniform that requires women to wear skirts