has done wonders for me so far to have some extra support!ERGONOMICALLY DESIGNED TO PROVIDE COMFORT RELIEF TO THE LOWER BACK and COCCYX AREA: The cushion is ergonomically designed to support the natural body weight while preventing pressure to the tailbone while sitting, delivering a comfortable relief while conforming to your individual shape. THE CUSHION’S UNDERSIDE HAS ANTI-SLIP GRIP DOTS with non-skid dot pattern that SECURE THE SEAT CUSHION IN PLACE: Ideal for office chairs, sitting at sports events, car seats, wheelchairs, church bench, bleachers, TV couch or even traveling on airplanes, trains or bus, Truck seat, the portable cushion will provide excellent non slipping seat comfort. BUILT TO LAST a Lifetime, The Interior is made of 100% MEMORY FOAM AND the exterior is made of a SOFT LUXURY COVER of Machine Washable Material. Unzip the cover and machine wash cover whenever you need. Memory Foam keeps its shape and adapts to body’s contour, therefore providing uniform comfort every time all the time.