This thermal food bag is designed with 3 layers of thermal insulation material. The outermost layer is 80 grams of non-woven fabric, the middle is pearl cotton, and built-in aluminum foil, which can effectively isolate the air, reduce heat loss, keeping your items cool or warm for up to 4-6 hours, ensuring optimal freshness.Our Insulated food take-away bag offers a large capacity, measuring 13"L x 10"W x 15"H with a three-dimensional bottom design.The top has a zippered closure to help control temperature and keep your items a little more secure. It provides ample space to accommodate your largest food. Suitable for fruit, small cakes, drinks, take-aways, etc. Perfect for outdoor picnics, camping trips, or family picnics, catering events, food take-away services.