The Portable Refrigerator Insulating Jacket for TB31 Model is a practical and efficient solution for keeping your truck fridge at the optimal temperature. Made of polypropylene with polyurethane reflective backed insulation, this jacket ensures maximum insulation and energy efficiency. It features convenient cut-outs for handles, power cords, and Velcro lid closures, making it easy to use and access your fridge. Sold individually, this insulating jacket is designed to fit most Truck Fridge TB31 models. Keep your food and beverages fresh and cool on the go with this reliable and durable insulating jacket.