Box style air beds have a flatter top and bottom surface than conventional air beds, and are made from rubberised cotton which has greater puncture resistance and more grip than PVC when wet. The combination of material and the box style makes them extremely versatile. They are the perfect shape and are rugged enough to be used as mattresses at home or in the tent, are ideal for sunbathing on the beach and the extra grip means you are less likely to slide off when used in the water!