Angled seat cushion reduces stress on your spine and coccyx for a comfortable seating experience. A road trip must have. Drivers seat cushion with memory foam aids with tailbone, coccyx, sciatica pain. * WEDGE SEAT CUSHION: Angled seat cushion reduces stress on your spine and coccyx for a comfortable seating experience. A road trip must have. Drivers seat cushion with memory foam aids with tailbone, coccyx, sciatica pain. * PREMIUM MEMORY FOAM WITH COCCYX CUT OUT: The perfect combination of plush softness for comfort, yet firm enough to offer proper positioning. Coccyx cut out aids in reducing pressure on the coccyx/tailbone providing hours of comfort.