Personalize workspace comfort with temperature control and back support. Gel lumbar pack conforms to individual users for flexible back support. Gel pack heats up in microwave or chills in refrigerator. Slim profile with soft touch fabric enhances personal comfort. Features hot/cold icon stitching in contrasting color. Adjustable strap with buckle fits most modern office chairs. General Category: Seating Accessory; Sub-Category: Backrest; Temperature Control; Color(s): Black; Color Family: Black.