Come and see our amazing products. The lining of this lunch bag made of high quality oxford cloth is made of aluminum foil, which will not melt easily when the bag is filled with hot stuff, while we use high quality zippers, which will minimize the possibility of zipper breakage. This lunch bag is made of insulating material that will keep your food and drinks warm for over 4 hours. The built-in pearl cotton provides great protection for your containers, food and drinks. 10000pcs Above is the price of sea freight, if you need air freight price, please feel free to contact us. Pls confirm with us about the packing info, stock color and exact production time before placing your order.