Model L-31 consists of an anterior thoracic and pelvic assembly, each of which is attached to serrated discs on the superior and inferior margins of the lateral uprights. The lateral uprights are padded and adjustable in length. A posterior thoracolumbar pad is attached to the lateral upright by our Dot Fasterner closure system. The L-31 comes complete with a swivel sternal pad, articulating pelvic section and suprapubic pad.