ALLEVIATES LOWER BACK PAIN - relieve lower back pain and tightness from long time sitting; support your lower back's natural curve to achieve the perfect spinal alignment and promote a healthy vibrant posture. Chiropractor recommended back support for surgery recovery and people who suffer from lower back pain, Piriformis, Lumbosacral Spondylosis, Fibromyalgia etc.NEW & IMPROVED DESIGN - 16.5