Oxford Premium Lining Zipper: The lining of lunch bag is made of PEVA foil that wont melt easily when the bag hold something hot, at the same time, we use a high quality zipper which will minimize the possibility of broken zipper. Long-Term Insulation: The lunch bag is made of insulated material which can keep foods and drinks cool or warm for more than 5 hours. 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. Wide-Open-Design: Top of the lunch bag can be opened up to 11.8x9.1 by strong zipper, which means you can put your lunch container into the bag and taken out of the bag horizontally. Wide open design is for easy access and it can prevent liquids from leaking out of the container and soiling inside the bag, which will saves your cleaning time. Large Capacity: 11.8L*9.1W*9.1H. The maximum capacity is 15L, spacy enough to store 24 tins of coke (330ml), or your lunch such as sandwich, salad, snacks, drinks and fruits and so on. Durable Heavy Duty: The exterior of lunch bag is constructed out of 600D water-resistant dirt-proof oxford fabric for durability and water proofing and easy cleaning. Strong linen handles and heavy duty nylon connect by dense stitching that make the bag extremely durable, proud to carry your lunch. Wide Opening Design The wide opening design makes it easy to pick things up, even if you put a lot of things you can see what you need at a glance. Large Capacity Lots of storage space to accommodate all the food you need, suitable for necessary working lunch of 1-2 people.