Abstract: Support for the bottom surface of a foot so as to maintain it in a normal, weight bearing posture is obtained by a rigid plate that extends under the area of the foot, except for the area under the toes and inner arch. The plate is of generally uniform thickness with tapered toe and heel portions. The rigid plate is obtained by molding an impression of the foot while the foot is held at right angles to the leg and in a semi-loaded or semi-pronated position.