Unique new design delivers maximum therapeutic benefit. Specially designed Thixotropic Gel Pack with soft gray washable fabric cover attaches anywhere on the Lumbar Cushion with velcro strips. Puts soothing Hot/Cold pack exactly where you want it. * Hot/Cold Therapy * Unique contour seat with pack * Easy attachment of pack to seat area with velcro strap * Soft gray contemporary seat and pack cover * Relief from pain in the lower back* * New Thixotropic Gel hold temperatures longer than conventional packs. * Stays flexible - Easily conforms to body - Right from the freezer * Pack is extra strong vinyl to ensure durability and safety *Non-toxic, Non-staining