Shape Up Beautiful Buttock Everyday: Memory foam sciatica pillow even when you sit for longer, keeps your prototype and increases blood circulation while maintaining support, also keeps skin smooth and supple. Doesnt collapse while sitting: Soft plush material and dual temperature texture for hot and cold weather. Support mats: Even if you sit longer, you will return to its original shape immediately after you get up. Seat pads are not deformed or collapsed. Our cushions have a washable and breathable cover. Doctor authorised: Orthopaedic soft seat cushion is suitable for back pain and sciatica, haemorrhoid pain or numbness when seated, injured coccyx alignment, spinal alignment, injured intervertebral discs, piriformis, lumbosacral spondylosis, fibromyalgia, recovery after surgery, improvement of posture, wheelchair cushion for disabled people. Ergonomic: The surface of the back support cushion is ergonomically designed to distribute body weight across the seat. This wedge cushion reduces pressure on the coccyx and relieves the pain of the sciatica discs and spine. Suitable for: The seat cushion can be used anywhere, car, office, sofa, kitchen chair, dining area, travel. Applicable for four seasons, it is durable and not easy to deform.