Material: Nylon Capacity: 30 litres Dimensions: 45cm x 35cm x 20cm Weight: 0.67kg Lightweight, insulated backpack for beach and camping, suitable for both men and women. 1. 24-Hour Insulation: The backpack insulated bag is made of 8mm thick foam insulation (other products usually use 5mm) with advanced silver PEVA seals to block UV rays and keep your drinks and food cool for 24 hours, perfect for beach picnics, hiking, camping, travelling, boating, baseball/wolverine games and work. 2. WATERPROOF LIGHTWEIGHT BAG: Our warm backpacks are made of high-density, scratch-resistant nylon material with PEVA lining that is heat-pressed at 240 degrees to prevent water from seeping out of the bag. Designed to be lightweight and portable (0.65kg), it comes with padded shoulder straps and adjustable backpack straps for a comfortable carry. 3. BENEFITS: Our leak-proof backpack insulated bag has 2 insulated compartments for cooling beverages and dry food, 1 large top pocket for snacks and fruits, and 2 side pockets with elasticated drawstrings to securely hold your wine bottle. There is a stainless steel bottle opener on the front for daily use. 4. DETAILS DETERMINE QUALITY MATERIALS: Our cooler backpack is ergonomically designed with 2 pieces of 5mm foam in the support area for a super comfortable carrying experience. The mesh design is breathable. In addition, an extra-large 7# double zip is used to ensure that it won't break even after prolonged use. The elasticated cord on the front allows you to hang towels, picnic mats or other accessories. 5. LARGE CAPACITY: Measuring 45x35x20 and holding up to 50 cans (330ml), it is spacious enough for regular meals, beers, medium drinks, snacks and other essentials, making it a great gift for both men and women, and a perfect accessory for camping, picnics, beaches and travelling!