An apparatus for partially covering a door or window opening in a vehicle comprises a collapsible cover. The cover may include a plurality of movable members adapted for moving along a support to at least partially expose the door or window opening. A plurality of movable members in the form of panels may be provided, along with actuators for rotating and/or moving one or more of the panels between the raised and collapsed configuration. One or more of the panels may be at least partially transparent or translucent, and seals may be provided for sealing the panels within the opening.