Durable Material: Our cooler backpack is made of high-quality fabric on the outside, PEVA lining and filled with pearl cotton on the inside, durable, waterproof and tear-resistant. Multi-layer insulation technology keeps your drinks and food fresh and cold. Leak-proof and Insulation: It is leak-proof. Thickened soft PEVA inner lining prevents leakage and is easy to clean. The inner lining is made of heat-insulating material, which can keep food warm or cold, and can also place ice cubes. Large Capacity Cooler Bags: 1 spacious main compartment, 1 front zipper pocket and 2 mesh pockets on the sides, spacious enough to hold meals, beer, long drinks, snacks and other necessities, very suitable for camping, hiking and picnics, etc. Portable and Multi-functional: Camping insulated backpack is equipped with a comfortable and durable handle and adjustable shoulder strap for easy carrying. Perfect for all kinds of outdoor activities, such as work, hiking, camping, fishing, beaches, road trips, etc. Ideal Gift Choice: Dimensions: 16.5 x 11.4 x 7.5 inches / 42 x 29 x 19 cm. The perfect must-have for outdoor camping.