About this item: Premium Lining & Zipper: The lining of lunch bag is made of PEVA foil that won't 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 11.8”x9.1” 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: 11.8”L*9.1”W*9.1”H. 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. Research & Development We have several options for developing new designs: 1) Customers provide their artworks and samples for making samples 2) Customers give us only their ideas, and we design and develop them. 3) We design and develop our new products according to our marketing experience for our customers' choice 4) Every season we develop new fabric and new colors for our customers. Sending us your product ideas today to contact us for more information on our abilities. Quality & QC procedure After the order is confirmed, we have a meeting with all the departments before production, investigate all the workmanship and technical details, make sure all the details are under control. 1)100% inspection for the cutting, main trim, production(making a pre-production sample before production)and the finished product. 2)Morning meetings by the factory director each day; 3)Q/A for the during and finished production; 4)Q/A for packing inspection; 5)Final inspection while packing up all the messenger bags. If there is no other problem at this stage, our QC will issue the inspection report and release for shipping 6) We strictly follow ISO AQL standards