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. Innovative Tri-Tachment™ system eliminates the need for readjustment. Fits most office chairs. General Category: Seating Accessory; Sub-Category: Backrest; Color(s): Black; Color Family: Black.