Come and see our amazing products. The lining of lunch bag is made of PEVA foil that won't melt easily when the bag hold something icy.The lunch bag is made of insulated material which can keep foods and drinks cool or warm for long. Besides, the interior lining is made of food grade PEVA foil so you could put your foods into the bag directly. The built-in 6mm EPE foam provides great protection to your containers, foods and drinks. Pls confirm further with us if any query about packing info, inventory status and time schedule.