Abstract: An improved seat device is provided which comprises a plurality, preferably two, of intersecting, generally flat unitary rigid support members of generally U- or modified H-shape, each of the support members comprising a generally horizontal crosspiece interconnecting a pair of spaced generally vertical legs, the crosspieces being loosely interconnected at notched portions, so that the legs can be angled from the vertical during use of the device to wedge the crosspieces together for greater stability. One end of the legs forms a base support. The device also includes a flexible seat member connected to and hanging down between the legs at a distance from the base support, as through pegs, notches, etc. in the legs and loops, holes, etc. in the seat member. Preferably, the positioning of the seat member is adjustable on the legs. The device is easily assembled and just as easily disassembled and compactly stored. It can be made of a total of three single pieces, without hinges, bolts, etc.