Versatile Seat Cushion: This seat cushion is made from memory foam and features a unique design. This design helps to relieve pressure under the thighs and can also be used as a lumbar pillow to provide support and alleviate discomfort in the lower back during long drives. Gel Top Car Seat Cushion. Coccyx Wedge Seat Cushion Is Designed To Reduce Pressure On Coccyx, Tailbone, Hip Bones While Sitting In A Chair, Car Set, Plane... The cushion will not traditionally meet the front edge of your seat as the taper to 1 provides room for your knees under the steering wheel. The foam retains its shape for longer use. Seat Wedge Cushion with Washable Cover for Sciatica Coccyx Tailbone Hip Posture Correction, Lumbar Support Pads Back Pain Relief Breathable Seat Cushion for Car Driver Seat, Office Chair, Wheelchair The Tush-Cush® brand of cushions are the original design of the wedge-shaped cushion with cutout and built-in handle that provides seating comfort and is a brand recommended by Doctors and Physical Therapists worldwide. Due to manual measurement, there is a tolerance in the product size.  If you need a cushion to fit a narrower seat, please see Compact Car Cush®, which fits vehicle measurements from Width 11 1/2,  Measure Your Seat Surface: Using a measuring tape or device, measure the flat seating surface you will place the cushion on. Ergonomic and Reliability: The ergonomic design of this seat cushion includes slow-rebound memory foam, which offers firm and supportive padding. With a thickness of 3., 5 inches, it acts as a seat lift, providing a few inches of extra height to improve the viewing angle, ensuring a more comfortable driving experience. It promotes better vision and posture and helps alleviate discomfort during short or long car trips. It is in the front and thicker in the back, with the front tapering to 0., 6 inches below the legs. DagobertNiko Car Wedge Seat Cushion For Car Seat Driver/Passenger The cushion also features a large opening zipper design, allowing for easy removal of the cover for cleaning. This design helps to relieve pressure under the thighs and can also be used as a lumbar pillow to provide support and alleviate discomfort in the lower back during long drives. Ergonomic and Reliability Make driving and travel fun again with the Car-Cush® Made in the USA Product Overview The Extra-Firm Car-Cush® is a higher-density cushion with a higher support factor recommended for persons over 200 lbs and those who prefer an extra-firm seating surface.