The Comfort Rider is, flat-out, the most comfortable seat cushion we've ever used. It's made from molded, high-density Comfort-Ease™ memory foam, with an anatomically-contoured top surface that distributes your weight for proper support. At a generous 18.5" x 19" x 1.75", it's larger than most car cushions, but still fits most seats, thanks to a reverse contour bottom that's covered in non-skid neoprene. A washable Lycra cover surrounds the anti-fungal, anti-bacterial foam core. When it comes to relieving pressure, easing back pain and reducing fatigue behind the wheel, there's nothing like the Comfort Rider. See for yourself! In Black. Made in USA. Five-year warranty.