Premium material: Our lumbar support pillow is filled with a new temperature-sensitive sponge, the lumbar support can adjust the contour of your back according to the temperature. The outer layer of the lumbar back pillow is made of high-quality, breathable fabric. The fabric of the back support pillow is comfortable and soft, not easy to fade. The parts of the lumbar back pillow have been certified and are safe and harmless to human health. High-quality design: The back support pillow for the chair is ergonomically designed, and the pillow for back pain has a partitioned design, memory foam back cushion can support your back curve and promotes a healthy posture. The lumbar support pillow for chair uses elastic straps to keep the lumbar support pillow for the couch firmly fixed on the seat.