Abstract: Devices, systems, and methods for use of a stowable seat topper are described. The stowable seat topper can include a seat portion, a back portion attached to the seat portion, arm portions attached to the back portion, and cushion portions attached to the back portion. The seat topper can include fasteners configured to secure the seat topper when in a stowed state. The seat portion, back portion, and arm portions can comprise molded foam and provide ergonomic support to a user. Furthermore, the seat topper can be configured to transition between a stowed state and a deployed state. In the stowed state, the seat portion, back portion, and arm portions can be rolled together and securing in placed by fasteners. In the deployed state, the seat portion, the back portion, the arm portions, and the cushion portions can be unrolled, aligned with a seat, and secured to the seat.