Our office chair cushion is made of high-density pure memory foam, which is very soft. When you sit on the seat cushion, it's just like sitting on cotton, very comfortable. Not only that, the memory foam of the chair cushion is able to slowly rebound and regain its original shape after each use. So you don't have to worry about the chair cushions being flattened. The office chair cushion adopts the ergonomic U shape design, no matter what your body type, can fit perfectly with the chair cushions. The U-shaped groove designs helps relieve pressure on your tailbone. Because the chair cushion fits your hips and legs perfectly when you're sitting in a chair. In addition, the seat cushion in the middle of the hollow design, very breathable, not stuffy, keep cool. The office chair cushions can relieve body soreness and improve posture. A poorly designed chair puts unnecessary stress on your lower back, hips, tailbone and thighs, causing you to sit improperly. Our ergonomic chair cushions can help relieve some of the stress by distributing the weight load on the seat cushion, making your body feel more relaxed. The office chair cushion is also equipped with adjustable straps that hold it in place on the chair. Even if you sit on the seat constantly moving, you can keep the seat cushion position. Of course, the cushion's external wrapping cover is also removable by the zipper for cleaning, so you don't have to worry about it getting dirty and not being able to use it. Lightweight and durable office chair cushions are suitable for various occasions, such as office chairs, car seats, home chairs, wheelchairs and so on. Even students, adults, and the elderly can choose this perfect seat cushion to keep their bodies comfortable and relaxed. This chair cushion would also be a great gift for the human body.