Round inflatable mattresses

Round

— a variant found among chair-mattresses and inflatable rafts (see "Type"). Chairs in this design usually have the appearance of a characteristic "donut," where the seat is formed by a depression in the center; there are also two-seater models of this construction, in the shape of a figure-eight — they are also classified as round. As for rafts of this shape, they can be designed for several people at once — including those sitting in a "face-to-center" position (in the latter case, the raft is usually supplemented with a foot hole — see "Additional").

Note that models in this category do not necessarily have a strictly round shape — there are also oval and other similar products.