Abstract: A sun screen includes a plurality of sections adapted to assume a generally planar configuration when extended and a compact configuration when folded in an accordion-like manner. Adjacent sections are coupled in a hinge-like manner by linear arrays of perforations to facilitate folding of the sun screen, which may then be retained in the folded configuration by an elastic strap disposed thereabout. An upper, median portion of the sun screen includes a narrow slot extending downward from an upper edge along the center, linear array of perforations and terminates in a circular aperture. A second plurality of linear arrays of perforations are disposed radially about an upper portion of the aperture, terminating in the upper edge of the sun screen. The circular aperture is adapted to receive a rearview mirror support member mounted on or adjacent to the windshield by inserting the mirror support through the aforementioned slot.