High quality materials: 3-layer protection. The inner liner is made from aluminum foil with cute patterns. It retains heat and freshness, and is waterproof, dirt-repellent and easy to clean. Large capacity: it can hold your dishes, drinks, bento boxes or sandwiches. Various sizes to choose from. You can also store small items such as mobile phones, towels, keys, cosmetics, etc. in nature. Heat and cool preservation: 3 layers of materials to retain heat. Each layer contributes to the preservation of temperature, the reduction of thermal energy transfer in the bag and the maintenance of freshness for a long time. Ergonomic design: secure zipper, smooth opening and closing, easy to store . Large opening. Easy transportation. With a cute smiling face, take your bag on a trip to feel good anytime and anywhere. Note: Small size: it can hold 2 lunch boxes + a small amount of fruit + milk + a single tableware. Large size: it can hold 3 lunch boxes + a small amount of fruit + milk + tableware for 2 people + a dessert. Recommended dimensions of the lunch box (L x W x H): 22cm x 12cm x 20cm. The above data is for reference. You can choose your quantity according to the actual content size. Please select the product you are looking for according to the product size.