Description 1.Unique design: Appearance and ergonomic design perfectly fit the human body when sitting. Our unique design helps eliminate pain and discomfort, reduce tailbone and tailbone pressure, and promote healthy posture. 2.Memory Foam: The main material of the seat cushion is memory foam, which adjusts its shape to different sitting postures by adapting to the curve of the hips and eliminating discomfort. Memory foam is durable and provides you with comfort for a long time. 3.U-shaped design: The U-shaped seat cushion effectively reduces pain and swelling in the sciatic nerve and lower back. Driving, yoga, office work will take you a long time to sit down, our spine will feel tired from long time sitting. This pillow can help you relieve fatigue very well. 4.Ideal Thickness: The thickness of our comfortable seat cushion relieves fatigue on long trips and in the office when working for long periods.