satin, any fabric constructed by the satin weave method, one of the three basic textile weaves. The fabric is characterized by a smooth surface and usually a lustrous face and dull back; it is made in a wide variety of weights for various uses, including dresses, particularly evening wear; linings; bedspreads; and upholstery.
Though originally a silk fabric, it is now made of yarns of other fibres. An all-cotton fabric woven in the satin structure is known as sateen.