Abstract: A protective cover for bags which may be carried by means of a harness or waist belt such as shoulder bags, fanny packs and the like is described. In order to provide additional protection against inclement weather, the bag comprises a pocket having a fastener and into which a cover of flexible water resistant material may be folded when the cover is stored. When additional protection for the bag is desired the pocket is opened and the cover unfolded from the pocket. The pocket contains the hinge joining the cover to the bag. The cover then extends around the bag to provide a water resistant covering extending over at least those sides of the bag which have openable flaps through which leakage may occur. The cover extends around but does not cover the harness so that the harness is still available for its intended use.