tabard

noun

1. 1.A silk banner attached to a bugle or trumpet.
2. 2.A woman's or girl's sleeveless jerkin or loose overgarment.
3. 3.A sleeveless garment made of coarse cloth formerly worn outdoors by the common people.
4. 4.A cape or tunic worn by a knight, emblazoned with the coat of arms of his king or queen on the front.
5. 5.A similar garment officially worn by a herald and emblazoned with his sovereign's coat of arms.