Discover the ultimate cooler backpack! Measuring 18.0'' x 12.5'' x 8.0'' (H x L x W), it can hold up to 52 cans (31 liters) of beverages. Crafted with 8 mm foam insulation, it keeps food cool for up to 16 hours. The seamless hot - pressed, leak - proof silver PEVA lining, reinforced by horizontal zippers, ensures no spills. Made of high - density, scratch - resistant nylon with a waterproof PU coating, it's 100% waterproof and easy to clean. The airflow back system and adjustable shoulder straps offer comfort during long trips. With multiple compartments and pockets, including hidden ones for valuables and a bottle opener, it's extremely practical. The unique design has a large front pocket, webbing holes, a stretch cord, and dual handles. Perfect for beach trips, picnics, hiking, and camping, it brings convenience to your outdoor life. Color: Black.