These Official United States Military Flag Sets feature outdoor Commercial Grade Nylon or Polyester Military flags for each of the 5 branches of the US military - the Army Flag, Navy Flag, Marine Corps Flag, Air Force Flag, and Coast Guard Flag. Each Of These Military flags are standard for outdoor use. And are made with Our DuPont SolarMax Commercial Grade Nylon or Poly materials. These Military Flags Are The Highest Quality Military Flags That Money Can Buy. Made with pride in the USA.