The 5 Series Tower Bag with Backpack and Headrest Straps, Wire Frame Insert and Heat Pad is constructed with high-performance insulation to maintain the temperature and quality of food on the go. The included heat pad with 120VAC power cord makes it simple to pre-heat the Bag to better maintain food quality and extend delivery range. There is a metal steam exhaust vent to release moisture without releasing heat. The Bag has strong reinforced plastic side handles for easy lifting and a unique removable wire frame insert for organization and stability. The backpack straps are adjustable making it ideal for bikes and scooters while the headrest strap and leveling wedge keep the bag secure during transportation. - Inside length 17 in - Inside width 18 in - Inside height 22 in - Sold per each