1Pressure Relief: Provide additional support you need to maintain good posture and the natural curve of the spine. By evenly distributing weight of the body, it offloading pressure on the spinal discs. 2Health Sitting: The ergonomic design helps to increase blood flow, prevents pain in the lower back, helps with muscle fatigue, leg tightness, hamstring, allowing you to sit upright naturally without pain. 3Slow Rebound Cushion: The cushion insert is made from slow rebound memory foam that conforms to your individual shape and helps to avoid pressure, ideal for hemorrhoid patient or pregnant woman. 4Comfortable and Breathable: The memory foam seat cushion is professionally engineered to provide great air circulation and allows you to sit without feeling hot or sweaty, breathable and comfy. 5Wide Application: This ergonomic seat cushion is compact and portable, perfectly suitable for office use, frequent travelers, sporting events and pregnancy, nicely fits most chair type.