t. This cute little cooler bag, which can be used as a lunch box, keeps your children's food and drinks cool all day long. The outer fabric is made from recycled RPET polyester, which is durable and easy to wash, and the insulating layer is made from vinyl. Together with some cooling elements, the lunch box keeps food cold for many hours. The bag has a practical handle and the finest golden zip. The cooler bag is a perfect companion to the small rucksack with the same pattern.