BEFORE PURCHASING please view our size chart (the 2nd image above). Size Small accommodates waist circumferences from 30 to 35 inches, fitting young to elderly women and men. ADJUSTABLE PULLEY SYSTEM is designed to provide you with comfortable support by allowing natural movement, encouraging good posture and alignment of your spine. Adjust pressure with just one hand in seconds for light to high-level abdominal and lumbar spine compression. PROTECT AND TREAT chronic low back pain, sprains or strains, sciatica, spinal stenosis, bulging or herniated discs, spondylolisthesis, fractured vertebrae, osteoporosis, post-operative fusion, facet syndrome, hyperlordosis, laminectomy, and lumbar discectomy surgery. LIGHTWEIGHT AND LOW-PROFILE support belt of the corset back brace is made of breathable mesh fabric. The hard, ergonomically-contoured back panel is a durable plastic material. REMAIN ACTIVE while wearing. This lower back belt offers added support and stability for athletes, exercising, sports, yard work, walking, and more. Are you suffering from lower or lumbar back pain? Or maybe you’ve recently undergone some type of back surgery? Introducing the MAC Plus Coset brace for back support. This form fitting and comfortable corset operates through a mechanical pulley system. The lumbar brace provides a 3:1 compression and stabilization from the T9 to S1 vertebrae. This means the brace offers targeted pressure to what is usually considered the lumbar or lower back. The MAC Plus Corset is an extremely sleek design, allowing the lower back to conform to the patient's body for pain relief. The brace works by providing targeted pressure through the corsets removable panels. You can control your level of pressure overtime by simply removing or keeping the panels intact, ideal for postoperative care. This brace is used in a variety of post operative situations including, spinal fusions, laminectomies, discectomies, and more.