Its large tube diameter and low seat position make the Outfitter II Tandem Inflatable Kayak Aire's most stable and forgiving two-person whitewater kayak. It's perfect for novice kayakers getting a feel for the sport and for those more experienced big water lovers who need a beefy boat. Or, it makes a great solo boat when you're packing lots of gear and equipment for multi-day trips in the backcountry. Its PVC on the outside is rough, tough, and ready to rumble on class II and III fun while the internal AIREcell system that is zippered into the PVC skin is what buoys the kayak. Between the float and PVC, you get a stiff, responsive boat for fun on the flats or foam. This float is maintained by its one-way marine Leafield B7 valves that come with protective caps, so you don't have to worry about springing a leak halfway down the river.