The brown on a Warrant Officer's insignia has real roots: in 1918, Army Mine Planter Service crews marked their rank with bands cut from brown burlap sacking, and it's been the official color of the Warrant Officer Corps ever since — worn by the Army's technical and tactical specialists.
Cut from durable outdoor vinyl, with color and size options. White and lighter colors show best on tinted rear windows. Have a specific request? Just ask — application instructions here.