A brace for supporting both the abdomen and lower back of the user. The brace includes a preformed abdominal support member and a preformed lumbar support member having an ideal lumbar shape with a circular dome that is vertically bisected by an oblong, elliptical protrusion, the support members each joined by two belts. The belts are positioned through slots on each member and are used to select the biasing force needed for each user. The device further includes rounded corners with indented edges and surface vents on each support member for the user's comfort during sporting events or strenuous activity.