1. Unique design: The appearance and ergonomic design perfectly fit the human sitting posture. Our unique design helps eliminate pain and discomfort, reduce tailbone and coccyx pressure, and promote healthy posture. 2. Memory foam: The main material of the seat cushion is memory foam, which can adjust its shape by adapting to different sitting postures. Hip curves and eliminate discomfort. Memory foam is durable and provides you with long-lasting comfort. 3. U-shaped design: The U-shaped seat cushion effectively reduces pain and swelling of the sciatic nerve and lower back. Driving, yoga, and office work all make you sit for long periods of time, and our spines will feel fatigued from sitting for long periods of time. This pillow is a great way to help you relieve fatigue. 4. Ideal Thickness: The thickness of our comfortable seat cushion can relieve fatigue during long trips and long working hours in the office.