The memory foam pad in this luxurious car seat cushion really does help support your lower back and promote better posture when driving. Transform your comfort - this lightweight memory foam cushion really does make a difference, moulding itself to your shape for tailored lumbar support and making the entire seat more comfortable. The breathable mesh cover helps regulate your body temperature so it's warm in winter (ideal for taking the chill off cold leather car seats) yet helps keep you cool in the summer. It straps easily in place and can also be used on other seats and chairs. - mysmartbuy Memory Foam Car Seat Cushion - Lightweight Breathable Lower Back Lumbar Support Pad - Measures 94 x W43cm