The Dobinsons 4x4 Fridge Freezer Protector Bag is designed to further insulate and protect your portable 40 Liter fridge/freezer. It features a heavy duty design with built in thermal insulation, external storage pockets, and vents in place for motor cooling. This will help protect the exterior finish of your fridge/freezer while traveling, and also give you a place to keep power cables when it is not in use.