Memory Foam Back Support with MicrobanFeatures Mid spinal support with memory foam cushion promotes good posture. Lower lumbar support with three memory foam sections that conform comfortably to natural body curvatures. Microban antimicrobial protection to keep product cleaner. Tri Tachment system eliminates the need for readjustment. Fits most office chairs. Details Mid spinal support with memory foam cushion promotes good posture. Lower lumbar support with three memory foam sections