Take all you need with Opa Cooler Backpack. This backpack is made of waterproof oxford fabric and lined with PEVA, aluminum foil material keeping food hot or cold for hours. With a large zippered main pocket and a front pocket, it is convenient to classify items and take them freely. Our backpack also has two side mesh pockets for easy access to a water bottle or umbrella and a front reflective strip for your safety at night. Come with adjustable and breathable padded shoulder straps which provide comfort on the trail or park! Perfect for travel, picnic, etc.