Ergonomic Design: With ergonomic design, the lumbar support can help you correct your sitting posture, effectively support your lower back to relieve the discomfort of driving or long time sitting^ Upgraded Version: The upgraded lumbar support for car uses high-elastic straps to adjust the radian from 5.3 to 7 inches, which can fit your lumbar area better^ Comfort & Breathability: The mesh back support for car uses double-layer breathable mesh, effectively keep your back and waist cool and dry^ Wide Applicability: With the installation belt, the lumbar support for chair is very easy to install. Suitable for 99% of seats, such as car, home, school, office seats, etc.^ RELEASE BACK PAIN: The breathable mesh will keep you comfortable. It contours to the shape of your spine and provides support without putting unwanted pressure on any muscle groups.^