Extra Dense Lumbar Pillow from C Cushion Lab. Designed by a physical therapist for back pain relief. Specially contoured to relieve lower back pressure for office workers, drivers, or anyone who sits for long hours and experiences back pain. Pillow provides firm sectional lower, mid, & upper mid-back support to keep your back & spine in ideal posture. Made with Hyperfoam™ - extra dense, dynamically rebounding, proprietary memory foam for all-day support. Encased in a breathable, hard-wearing polyester rayon cover that is removable & washable. Adjustable strap helps keep the pillow positioned correctly - also doubles as a luggage strap.