Waterproof and Leakproof Insulated Cooler—-The insulated cooler backpack is made of high quality waterproof and leak-proof PEVA liner to keep your beverage and food cold/hot for hours during your lunch, picnic, hiking, camping, beach trip, day trip, etc.Large Lunch Backpack—-LOTILE cooler backpack can hold 33 cans of soda(330ml), roomy enough to pack your lunchables, meals, beers, snacks, towels, and all your other picnic necessities, etc. The measurement is 12.2”L X 5.9”W X 16.9”H/31 X 15 X 43cm, weighs 0.71kg/1.56lbMultiple Pockets—-The backpack with cooler has a deep insulated main compartment for your insulations; 1 inside mesh pocket in the main compartment for extra storage; 1 side mesh pocket for water bottle or umbrella; 1 waterproof side zipper pocket for wet stuff; 1 large front zipper pocket with mesh divider to keep utensils and other necessities organized; 2 adjustable strap in front of the cooler for hanging picnic mat or clothesComfortable and Recyclable Backpack Cooler—-The cooler features recyclable material and is friendly to the environment. Dual adjustable padded shoulder straps and thick padding in the back together with a sternum strap to allow for maximum comfort and support; A built-in beer opener on the strap for easy use; Extra top padded handle for easy carryingVersatile Cooler Backpack—-Besides used as excellent lunch cooler bag, it is also a perfect lightweight gear for hiking backpack, camping backpack, fishing bag, hunting backpack, travel backpack, trail, cycling, overnight stay and other outdoor activities. Suitable for both men and women