Seating support system

A seating support system, comprising:

• a frame defining a seating area;
• an elastic knitted strap extending across the seating area defined by the frame;
• a first inflatable bladder disposed on top of said elastic knitted strap;
• and
• a wire spring extending across the seating area and over said first inflatable bladder, such that the first inflatable bladder is disposed between, and held in position by, the elastic knitted strap and the wire spring.

A chair having an adjustable support system, comprising:

• a frame defining a back area and a seat area;
• a plurality of spring wires extending across the back area and the seat area;
• a plurality of flexible straps extending across the back area and the seat area, wherein each flexible strap is attached to the frame near respective flexible-strap end portions, such that each flexible strap includes a respective middle portion between the respective flexible-strap end portions;
• a first inflatable bladder disposed between, and held in position by, a spring wire and a flexible strap in the back area, wherein, when the first flatable bladder applies a force against a middle portion of the flexible strap, the middle portion elongates;
• and
• a second inflatable bladder disposed between, and held in position by, another spring wire and another flexible strap in the seat area.