【PREMIUM MATERIAL 】This insulated lunch bag is made of durable and waterproof 600D oxford fabric with reinforced double zipper offers protection on the outside. The inner aluminum foil and leakage-proof PEVA with 6mm pearl cotton linings that is BPA and PVC free, provide insulation and without any concern about leaking and getting wet. 【THOUGHTFUL DESIGN 】Two main compartments to keep your warm and cold food separated. You can put your lunch in the top inner part of lunch tote bag, the insulated aluminum can keep your food warm and the bottom inner compartment can keep your cold item 8 hours fresh. 【PLENTY OF ROOM 】This large capacity double decks lunch tote bag with a front zipper pocket and side elastic mesh pockets are spacious enough to put your food, fruits, napkins, keys, utensils and other stuff. 【DUAL PORTABILITY 】This reusable lunch box with upgraded soft handle provide a cozy grasp and the detachable &adjustable shoulder strap with soft pad can free your hand when you need. 【MULTI-SCENARIO USE 】The size of this unisex lunch bag: 10.8in*8.3*11.2in. Ideal for the office, go day-trips and beach, school, pack a healthy lunch for your family or have a delightful sunday picnic. 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