Joe, we have 9 cars in the Car Jacket storage bags....we have been using them for about 3 years...fantastic! I also throw a couple of those dryer sheets in the car and under..keeps away the mice. We use the little humidity bags also...inside the car(trunk, back seat, front floor, underhood) also throw a couple under the car inside the bag. Don't forget you still have to use a regular car cover first to protect the paint from the car jacket.
wilma
ps: makes a great temporary garage at a car show...