To concurrently use a single sheet body for both an automobile cover and a sunshade.

A plurality of through-holes 3 are formed in the vicinity of approximately the central part of a sheet body 1 approximately in an oblong shape having protruding one end and a cover in a triangular shape in a part of which a drain passage is formed for the through holes is disposed from an upper surface. A belt 6 is disposed longitudinally of the under surface of the sheet body and removable hooks 7 are coupled to the two ends of the belt. A plurality of hook rings to which an expandable belt 9 having a hook coupled to an end part is coupled, are disposed in the desired position of the under surface of the sheet body. Side fasteners foldable in a tuck-form manner are disposed approximately in the directions of four corners.