Truck boots seal the cab and the cap to each other. A truck boot is also called a truck camper shell donut, truck tunnel or a canopy boot. It is a clear inflatable boot made of top quality PVC that makes it resistant to problems cause by the sun and extreme cold. It works on trucks with a window gap of 3" or less.
Inflatable, clear boot for large trucks used between truck cabs and truck caps with a gap of three inches or less between the rear window and truck cap. Size: large, inside dimensions: 24" by 16" by 3".