A covering for vehicle containers (10) is intended to be movable from a stowed position on the vehicle and over the top of the container opening (12). The covering includes a frame (19) which is made up of interconnected elements, (25, 26, and 27) which are moved from a stowed position to an operative position located over an upper opening of the container. The interconnected elements unfold to be located generally horizontally over the opening. The elements are covered with sheeting (28) to prevent material from escaping from the container.