The Hippo Extreme rafts are the perfect alternatives for companies and individuals that are heading for big volume rivers. Due to the larger diameter of the outer tubes, they offer more volume and a stabler carrying capacity in the most extreme situations. As with the regular Hippo Series, these boats are constructed from the same quality Dupont Hypalon, are outfitted with a self-bailing floor, stainless-steel 2-inch D-Rings, and carry handles.