» This article deals with non-military armbands used for display purposes. For military armbands, see brassard. For flotation arm bands, see Water wings. An armband is a piece of cloth worn around the arm over the sleeve of other clothing to mark the wearer as belonging to group, having a certain rank or role, or being in a particular state or condition. When used as part of a military uniform it's called a brassard. Uniforms serving other purposes such as to identify members of clubs, societi… (More on Armband)