Abstract: The flexible, weatherable decorative sheet material provided by the present invention comprises a thermoformable decorative paint film having an inner surface and a weatherable, low gloss outer surface suitable for forming an exterior finish for a part, such as an automobile body part. The sheet material further includes an extensible mask layer releasably adhered to the outer surface of the paint film to form a protective film overlying the paint film. The mask layer comprises a film-forming polymer component and a particulate filler, such as silica, dispersed in the polymer component. A method of constructing the decorative sheet material, a method of controlling the gloss appearance of a paint film, and a composite shaped part including the decorative sheet material are also provided.