A seat assembly is provided that may include a seatback and a seat bottom. The seatback may extend generally upright. The seat bottom may be connected to the seatback and may include a frame and a seat bottom adjustment mechanism. The seat bottom adjustment mechanism may include first and second cushion pans that are movable relative to the frame and movable relative to each other between first and second configurations. The first and second cushion pans may support one or more seat cushions.