sunshades for vehicle windows are provided , including a shade having upper and lower edges , and a pair of support members having free ends . one of the members is associated with each of the upper and lower edges , and the support members are constructed to be spaced apart to support the shade in an extended , open position during use . each of the support members includes a self - straightening tape that is arcuate in cross - section and can be repeatedly folded without significant plastic deformation .