A seat assembly for use in supporting an occupant in an automotive vehicle is provided, having a seat frame and a suspension material extending between and operatively secured to the seat frame for supporting the occupant of the seat assembly. A plurality of adjustment assemblies operatively couple the suspension material and the seat frame. Each adjustment assembly includes a stationary bracket secured to the seat frame and an adjustable attachment bracket operatively coupled to the stationary bracket. The suspension material is secured between the adjustable attachment bracket and the stationary bracket. The tension in select portions of the suspension material may be selectively adjusted in response to movement of the adjustable attachment bracket relative to the stationary bracket.