1.【Premium Lining and Zipper】: The lining of the lunch bag is made of PEVA foil which does not melt easily when the bag contains something hot, at the same time we use a high-quality zipper that minimizes the risk of a broken zipper. 2.【Long-lasting Insulation】: The lunch bag is made of insulating material that can keep food and drinks cold or hot for more than 5 hours. In addition, the inner lining is made of food-grade PEVA foil so you can put the food directly into the bag. 3.【Wide Opening Design】: The top of the lunch bag can be opened with a strong zipper, which means you can put your lunch container into the bag and take it out horizontally. The wide opening design is for easy access and it can prevent liquids from leaking out of the container and soiling the inside of the bag, saving your cleaning time. 4.【Large Capacity】: 15L, 30 * 19 * 29 cm; 25L, 38*25*29cm. Spacious enough to store soda, or your lunch such as sandwiches, salads, snacks, drinks, and fruits and so on. 5.【Premium Material】: The exterior of the lunch bag is constructed of water-resistant dirt-repellent oxford fabric for durability and waterproofing as well as easy cleaning. Strong linen handles and heavy-duty nylon are connected with tight stitching which makes the bag extremely durable, proud to carry your lunch.