The main cushion (3) of an automobile seat (e.g. the seat pan cushion, or a backrest cushion) is provided with a shield (2). The shield surrounds at least part of the lateral sides of the main cushion and is formed of a less compressible (i.e. harder) foam than the main cushion, such that when the seat is upholstered, creases in the upholstery are reduced/prevented and gapping is avoided.