1 Integrated support shell with adjustable aluminum stay maintains the therapeutic angle of the foot and lower leg at 85° to 90° 2 Flex EdgeTM overmolding eliminates pressure points and discomfort while protecting sleeping partners 3 Full calf and heel strapping holds the foot in the desired angle and eliminates rotation and migration of the product 4 Thermoformed Form fit® padding on the inside of the soft good improves patient comfort . Semi-rigid plantar pad reduces discomfort along the sides of the foot while providing an improved angle of dorsiflexion . Circumferential heel and posterior strapping prevents migration while increasing overall comfort and effectiveness