1. A vehicle seat, comprising: a seat portion having a metal frame; a plurality of air bladders disposed in the seat portion and operated via centrally bundled air passageways that extend vertically through the metal frame and into a central area of the seat portion; a support plate supported on the plurality of air bladders; and a controller configured to control an inflation level of the plurality of air bladders, wherein each air bladder of the plurality of air bladders is selectively and independently controlled by the controller and the air passageways to adjust a position of the support plate, the air passageways extending from the controller to the central area between the plurality of air bladders.