The Relax Fusion Lumbar Memory Foam & Gel Seat Cushion instantly transforms any chair or seat into a more comfortable one! This cushion's contoured shape plus its soft high density memory foam and cooling gel layer provide ergonomic support for your mid and lower back which improves circulation and overall health. A built-in strap secures it to your chair or seat so it stays in place as you lean against it. Use this cushion to sit down longer and reduce or eliminate your pain and fatigue. This cushion provides advanced pressure relief and ergonomic support, plus cooling comfort from the gel. Its durable mesh cover wicks moisture and heat away from your body. A breathable polyester inner liner maintains maximum cooling transfer from the gel. The 100 percent polyether cooling gel distributes pressure, reducing pressure points and increasing comfort. Plus it is easy to clean; simply remove the polyester cover and put it in the washer. It's lightweight so you can easily and conveniently take it anywhere you go. This memory foam and gel cushion is perfect for anyone who sits for an extended amount of time, such as office workers, bus and taxi drivers, airplane travelers, anyone in a wheelchair, etc. Use it at home, at work and when you travel. By combining luxurious fabric with the memory foam, HealthMate has created the world's most touchable orthopedic seat cushion. Incredibly soft, wonderfully supportive, it transforms your daily environment into a more comfortable world. The memory foam is made out of 100 percent polyurethane. The cooling gel is 100 percent polyether. Dimensions: 15" x 15.3" x 3".