Each Bigfoot RV is built using our unique construction & insulation system as well as outstanding features, considered upgrades in most RV lines. Our 2500 Series Truck Camper models are the 9.4 and 9.6 each available in both shortbox & longbox, along with the 10.4 and 10.6E models. This series features R8 1-1/2” high density EPS insulation along with a 30,000BTU furnace for all-weather comfort.