Car Seat Cushion - Memory Foam Car Seat Cushion - Relieve Sciatica and Lower Back Pain - Car Seat Cushion for Driving - Road Trip Essentials for Drivers (Black) Multi-Purpose Cushion - The memory foam seat cushion is thin in front and thick in the back, the front of the cushion tapers to 0.6 inches under the legs to prevent pressure under the thighs. It can also be used as a lumbar support pillow, which can fill the gap between the waist and the seat back, relieving waist pain caused by long-term driving. Improved Viewing Angle - Our car seat cushion is perfect for people with shorter stature. Our car seat cushion is 3.5 inches thick to improve your viewing angle. Ergonomic Design - This ergonomic seat cushion adopts slow rebound memory foam to provide you with firm support and maintain its shape for a longer service life. Large opening zipper design makes it easy to remove the cover for cleaning. Breathable fabric keeps you cool even on hot days. Make Driving Comfortable - Cushion size: 17.3"*10.5"*3.5". It is the perfect driver seat cushion (lumbar support pillow) that provides better vision, better posture and pain relief during short or long car rides, making it a must-have for road trips. Super Customer Service - Package Included: 1 x Ergonomic Car Seat Cushion. As a thoughtful gift, give this cushion to someone you love!