Each Bigfoot RV is built using our unique construction & insulation system as well as outstanding features, considered upgrades in most RV lines. Our 1500 Series Truck Camper models are the 8.2, 9.5FS and 9.5FR shortbox models and the 9.5FS and 9.5FR longbox models . This series features R6 1” high density EPS insulation and is our lightest weight RV.