Premium Memory Foam & Sturdy Supportive: Ergonomic Streamline molds with premium memory foam, slow-rebound, enough softness but supportive back pillow and never flattens out, a proper firmness lumbar pillow embraces around your waist and support your back with comfortable experience.Alleviates Back Tiredness: The design of ergonomic curve provides lumbar support for office chair that is beneficial to support upper, middle, lower back from sitting or driving for long; It keeps you a good posture.Adjustable Straps & Hold In Place: Two adjustable straps with flexible buckles prevent the lumbar pillow from sliding down with multiple ways. Unlike other lumbar support pillows with only one strap or no any strap, you could always adjust to your most comfort.