an openable / closable water - proof bag into which a motor vehicle , or other large object , may conveniently be moved and placed inside . the bag is formed of two sheets polyethylene plastic material , one atop the other , which are bonded and adhered at one end and on two vertical sides , leaving one end of the bag that is openable and closable . when the openable and closable end of the bag is closed , and the sides of the bag are folded upwardly and secured tightly around surfaces of the motor vehicle or other large object , the contents of the bag are protected from water and other harmful outside elements , thereby preserving intact electrical and mechanical components of the enclosed object from the effects of a flood and outside debris .