18L Insulated Backpack, Waterproof Backpack Cooler, Leak Proof Cooler Bag, & Lightweight Picnic Bag Rucksack for Beach, Hiking, Picnic, Fishing, Travel

100% Leakproof & Upgraded Material: This insulated backpack features a long-time insulation effect. Enhanced seamless lining stitching technology and high-quality heat sealing support 100% leak-proof. & Lightweight: The insulated backpack is made of heavy-duty nylon, so there is no need to worry about tearing or scratching, and it is easy to clean. Lightweight foam insulation lining can bring to your every outdoor sports. It is strong and comfortable. Premium Material: The exterior of the insulated bag is also made of waterproof material, making the backpack effectively leakproof and practical. Versatile Bag: More than an excellent backpack with insulated compartments, this cooler bag can be used as a cooler backpack, lunch backpack, travel cooler, beach cooler, fishing backpack cooler. A perfect choice for cycling other outdoor activities, suitable for men and women. Just the Right Size: This insulated cooler bag measures about 42*29*19cm/16.54*11.42*7.48inch, and it can hold a volume of 18L.