DURABLE MATERIAL: Camping cooler made of waterproof oxford material, durable and easy to clean. Seamless and waterproof inner picnic backpack with high density thermal insulation. Large capacity: the size of the picnic bag is 26*18*17cm, the capacity is 6 liters and the total length of the shoulder strap is 123 cm. It's enough to hold salads, fruits, candies, sandwiches, drinks and even children's food containers. Good heat preservation and cooling effect: The inner small layer is made of quality environmental aluminum food grade, filled with EPE foam, which has high heat resistance and heat preservation, which helps keep food and drinks cool. Convenient and Portable: A foldable picnic bag. Padded double handle, improved smooth zipper, easy to clean, waterproof and heat resistant. Wide range of uses: This product can be used as a lunch bag, picnic bag and food storage bag . It is very suitable for business travel, office, car, outdoor travel, hiking, camping, party, picnic, beach,