The invention relates to an airbag flap covering the mouth of an airbag receptacle, wherein an airbag outer cover overlies the airbag flap and the airbag flap is connected via a hinge element to a flap support wall in a molded manner, which is in turn secured to the airbag outer covering and/or to a wall of the receptacle, wherein the airbag flap and the flap support wall consist of the same flat plastic, in particular a composite material, wherein a direction-fin-guiding structure, in the form of numerous slits and/or openings, is provided in the flat plastic, in particular in the composite material, in the region of the hinge element and/or to one or both sides of the hinge element, in the flat plastic, in particular in the composite material, and thereby creates at least one stretch region in the material in the direction in which the airbag flap moves outward through the airbag cushion.