A padded device designed to provide support, comfort, and assistance to the occupant of a wheelchair typically by improving posture, providing back and/or side support, compensating for seat height, relieving stress points, and providing pressure alleviation for the buttocks, lumbar region, and the legs, and/or by providing an antislip mechanism. The device is typically situated behind the lower lumbar region of the back or under the buttocks and/or legs while the occupant is seated. This is a reusable device.