High-quality material: 102% high-grade therapeutic-grade memory foam combined with gel. Will not become flat after long-term use. The non-slip bottom ensures that the mat stays in place and will not move or slide on any surface. Advanced memory foam: Made of high-quality high-density memory foam, the contour is consistent with the shape of your hips. These chair cushions can relieve pressure points and relieve sciatica and lower back pain. Gel surface layer: Enhanced by a layer of gel, our memory foam seat cushion provides a comfortable ride. Sitting for a long time, enjoy breathability and comfort, warm in winter and cool in summer. Easy to clean: The mesh fabric is easy to disassemble and machine wash. The outer cover has a zipper closure for easy and quick removal of the pillow core. Widely used: It is super comfortable for any chair, bench, car seat, airplane seat or wheelchair.