A sleeveless outer garment worn by knights over their armor, often bearing a coat of arms. The knight's tabard displayed the emblem of his noble house as he rode into battle.
A loose-fitting garment worn by a herald, often emblazoned with the arms of the sovereign or lord they represent. The herald wore a brightly colored tabard as he announced the arrival of the king.
A simple, sleeveless garment worn as a uniform or apron, often by workers or students. The cafeteria staff wore blue tabards to protect their clothes while serving food.