A seat includes a back part and a seat part having a seat cover, padding, and a support structure. The seat cover delimits a seat area, which is divided into a central bearing area and two side support areas. An air bladder is located in each of the side support areas. The air bladders can be inflated or deflated for changing the vertical position of the seat area on the side support areas. A bearing part is arranged between the support structure and the air bladder. A fastener constructed as a latching connection is configured to fix the bearing part on the support structure.