1. Unique Design: The appearance and ergonomic design fit the human body perfectly when sitting. 2. Memory Foam: The main material of the seat pad is memory foam, which adjusts its shape to different sitting posture fitting the hip curve and eliminating discomfort. 3.The memory foam is durable providing you comfort for a long time.4.U-Shaped Design: The u-shaped seat pad effectively reduces sciatic nerve and lower back pain and swelling. Driving, yoga, office work will take you a lot of time to sit, our spine will feel tired because of long sitting. This cushion can help you relieve fatigue very well.5.Ideal Thickness: The thickness of our comfy seat cushion relieves fatigue during long distance travel and in the office when working for long periods of time.