Apply the posterior extension of the brace in the thoracic region so that the posterior bars come on either side of your spine region. Tighten the elastic corset in the anterior region of the body. Then, adjust the shoulder straps to correct the shoulder posture. Bring ends of the straps around the bilateral armpits and insert it through the buckle. Now, pull both the straps simultaneously with equal pressure. Attach the hook & loop closure and the additional strap as per your comfort.