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 and relief without numbness.Alleviates Back Tiredness: The design of ergonomic curve provides lumbar support for office chair that is beneficial to relieve upper, middle, and lower back soreness and tightness from sitting or driving for long; It keeps you a healthy 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 .