Relax your muscles with this Lumbar Back Support Chair Cushion Designed to improve your posture  Slip this lumbar support cushion on any chair or seat for instant, ergonomic positioning  The premium, visco-elastic memory foam molds to your natural shape It's designed to fit most standard chairs and car seats The extendable, adjustable fastener strap accommodates larger seats and keeps it in place Comes with a soft, attractive, breathable mesh cover to allow airflow Made with eco-friendly memory foam that adjusts to your body heat  Let the cushion do the hard work with this Lumbar Back Support Chair Cushion - save 70%