respectively occupy and divide the left and right interior areas of frame 10 extending parallel to the side members 16 and 18 each suspension mat 20 and 22 consists of identical individual resilient wires 24 which while they are capable of stretching individually are ganged together to effectively respond as a single resilient unit that can be stretched or relaxed into greater or lesser tension each suspension mat 20 and 22 is oriented beneath a respective left and right side of a seated occupant and react to the downward load of the occupant by stretching until they create an equal upward reactive pressure or load that resists the downward seat load in practice the mats 20 and 22 would be covered by a compressible foam cushion covering all of frame 10 through which the pressure of the tensioned mats would be transferred to the seated occupant but this is shown removed for ease of illustration the front mount for each mat 20 and 22 is simply a fixed bar and hook assembly 26 which does not stretch or move appreciably in response to stretching of the mats 20 and 22 the rear mounts on the other hand can move in response to stretching and loading of the mats 20 and 22 the rear mounts consist of a pair of generally l shaped hollow tubes 28 and 30 inserted rigidly through the rear suspension member 14 and through which a short flexible but non stretchable cable 32 can slide cable 32 is fixed at each end to the rear of a respective left and right mat 20 and 22 as a consequence the rear of either mat 20 or 22 can move out and down reflected in a matching in.