Abstract: A sun shield assembly, to be used as an interior cover of a vehicle window such that the interior of the vehicle is protected from direct sunlight, the sun shield including a flexible, opaque material panel, sized and configured to substantially cover the interior surface of the window, a plurality of adjustably positioned suction cups positioned at a plurality of locations about the periphery of the panel so as to enable the panel to securely engage the interior surface of windows of a variety of sizes and configurations, and a plurality of slits cut into the panel, structured and disposed to allow the rear view mirror of the vehicle to pass therethrough.