1. Dual Compartment Backpack Cooler It has a main leak proof cooler compartment for drinks, beer, tall beverages, fruits, ice pack. And the upper half has enough space for dry items, such as meals, snacks, guide book, cellphone and so on. 2. Leakproof design Half upgraded inner thick foam insulation and high quality heatsealed leak proof lining work together to make the large backpack cooler antileaking and keep things cool/hot and fresh. The interior lining is made of excellent foodgrade material and is easy to clean. Don't worry about spilled food getting your car dirty. 3. LIGHTWEIGHT DURABLE COMFORTABLE The large backpack coolers are made of durable fabric which will not rip, tear or scratch and is also lightweight. Adjustable shoulder straps and ergonomic design with padded sections on the back for comfort and softness. 4. Multifunctional backpack The soft waterproof backpack is an essential companion for your outdoor activities. It is not only an insulated lunch backpack cooler, but also a beach cooler backpack, picnic backpack, hiking backpack, camping backpack, fishing bag, travel backpack and so on.