This insulated lunch bag is made of premium polyester, with a durable outer layer and inner aluminum foil insulation that locks in heat and cold to keep meals fresh. It measures 7.48 inches long, 7.48 inches wide, 9.45 inches high, and weighs only 0.77 lbs. The round bucket shape fits most lunch boxes, with a handy carry handle. Its 3-layer design delivers great insulation, and the aluminum foil lining wipes clean easily with a paper towel, perfect for daily commuting and meal prep