The outside of the lunch box is made of 300D Oxford cloth, which is durable, waterproof and easy to clean. The inner lining is made of food grade aluminium foil and padded with 5mm EPE foam for excellent heat resistance. Comes with a zipper for easy access. Premium foil lining provides excellent heat resistance to keep food fresh and warm/cold. It's ideal for storing food to take to school, work, picnics, beaches and barbecues. It's also great for keeping cold drinks or ice packs warm at the gym or in the car. Specification: Color: Various styles (as pictured) Material: cationic cloth + aluminium foil Size: 20*13*22cm Package Included: 1* lunch bag notes: Please allow 1-2cm difference due to manual measurement. Due to light and screen differences, the color of the item may be slightly different from the picture.