Quality Material:This large lunch bag is come with a ergonomical designed which is made of the highly durable 600D Polyester,non-toxic food safe PEVA lining,EPE foam insulation and high-quality reinforced metal SBS double zipper, smooth zipper for smooth pulling, tear-resistance and maximum durability.X Large Capacity:Extra large capacity,Insulated lunch bag (16 x 9 x 11 inches) for maximum storage efficiency, the lunch box with a main zippered compartment will allow you to keep your food and drinks warm and fresh, and it can accommodate 40 bottles of 330ml drinks.Leakproof InteriorHeat-welded technology make the interior of the lunch bag leakproof and the lunch bag kept ice for around 15 hours, which is amazing for a soft-sided cooler. Its even more surprising that the bottom of the bag didnt leak when the ice melted.Portable DesignDetachable adjustable shoulder strap and top reinforced handle make it easy for you to carry this lunch bag. Smooth double zipper design, with 1 large front pocket and 2 side mesh pockets, which can store many small things.The stitching on the top zipper seemed especially stout, and both zippers operated with ease no tricky corners or sticky spots.