Features 1. Longer Cooling Time: backpack cooler is made of high-quality PEVA material and thick insulating foam. Our waterproof backpack comes with a refrigeration compartment that can keep your food and drinks at the desired temperature (hot or cold) for up to 8-20 hours. You can drink chilled beer, eat fresh snacks or fruits with friends or family at any time. 2. Leak Proof And Durable: The hard lining and waterproof zipper make our backpack cooler insulated and leak proof, ensuring the safe storage of your drinks and food. Durable materials and sturdy stitching ensure that these travel insulation bags have a longer lifespan. The backpack style cooler is insulated and leak proof, making it perfect for kayaking, fishing, and golf. 3. Multifunctional: Our soft edge cooler is suitable for any occasion. In addition to being used as an excellent refrigerated bag, it can also be used as a beer refrigerated box, boat refrigerated box, freezer, dry refrigerator, men's and women's backpack lunch bag, hiking backpack, camping backpack, beverage refrigerated box, and beach refrigerated bag. In addition, ergonomically designed padded shoulder straps greatly alleviate shoulder pressure and make the journey more comfortable. 4. Multiple Compartments: 1 main large soft cooler insulated and leak proof storage room for storing beverages or food, with 2 front pockets for storing dry items, and 2 large mesh side pockets, making it the perfect space for storing high priced beverages or water bottles. 5. Spacious Capacity: The backpack's refrigerated box has a leak proof size of 30 x 15 x 44 cm/11.8 x 5.9 x 17.3 inches, which is spacious enough to accommodate meals, beer, tall drinks, snacks, and other items. The perfect insulated refrigerated backpack is suitable for lunch, work, hiking, camping, barbecue, beach, road travel, outdoor, and more. Specification Material: Anti splash fabric Color: Black, Blue, Gray, Grey+oranger Size: 44 x 30 x 15 cm Weight: 610 g Package Include: 1x Cold Preservation Picnic Bag