Memory foam lumbar support backrest cushion, comfortable support, care for the spine. Designed for the waist, strong support, relax the discomfort of the lumbar spine caused by prolonged office work. Adjust the natural S-shaped curvature of the entire spine by pressing the spine forward to maintain a normal upright state of the body. Enlarged and widened design, surrounded by wings, full support, and full back support. The elastic strap design on the back can adjust the height freely. The fabric has a skin-friendly and delicate touch, and has good breathability. Slow temperature rebound, memory foam inner core, full support, effectively relieve lumbar pressure and support the lumbar spine. Zipper design, easy to take apart and wash.