Material DescriptionThe lunch bag is made of high-density Oxford cloth and thick aluminum foil. It will keep your food cool or warm for about 4 hours. It keeps your food fresh and delicious. It will be better and fresher to freeze in an ice pack.Product performanceLight weight, thickened handle, upgraded wear-resistant smooth zipper. You can store small items in this 8x5" front pocket.Applicable ScenariosEasy to use as a lunch bag, picnic bag, grocery bag or shopping bag. Unisex lunch packs are not only suitable for work and college, but also for outdoor activities such as fishing, hiking, picnics, and more. You can take it to the office, to day trips, to the beach and to sports. Or pack healthy snacks for your family or enjoy a delightful Sunday picnic.