Picnic Time Cooler Backpack - Set of 2The Pismo insulated cooler backpack won't weigh you down when carrying food and gear to your destination. The backpack is made of durable 600D polyester and divided into two sections: the top air mesh section (with drawstring closure) is designed to hold clothing, towels, or other gear that needs to "breathe", and the bottom section features ThermoGuard insulation to keep food warm or cool for hours and a heat sealed, water resistant lining to guard