From snacks to picnic lunches, the ONIVA Zuma Picnic Cooler Backpack holds everything you need for your next outdoor meal. It's made of durable polyester with a water-resistant PVC lining to protect against leaks. The bottom section is insulated to keep your food and drinks at optimal temperature. It also has a top, air-mesh section for towels, clothes, or other gear. Other features include two zipper pockets and two beverage pouches, as well as padded straps with a pocket on the right strap that's perfect for holding your cell phone or other device.