A seat assembly includes a wire frame assembly having a support frame with at least one side rail and one or more engagement features. A cushion support assembly is overmolded to a portion of the wire frame assembly. The side rail of the wire frame assembly includes an exposed portion that is not covered by the cushion support assembly. The one or more engagement features of the wire frame assembly extend outwardly from a bottom surface of the cushion support assembly. A trim panel includes one or more clip members that releasably couple to the side rail of the wire frame assembly. At least one support plate includes receiving apertures disposed therethrough to receive the one or more engagement features of the wire frame assembly in a vertical manner.