L-T Support provides thoracic support in addition to lumbar support. Beneficial for those with osteoporosis or arthritis. Moldable insert provides extra support and protection after spinal surgery. 20"H at spine, contoured top and bottom in front for comfort. Adjustable criss-crossing abdominal straps and padded shoulder straps.Sizing: Measure waist.Small: 24" - 30" Medium: 32" - 38" Large: 40" - 46" X-Large: 48" - 54"