Bravo Medical Grade Mesh Clavicle Brace and Posture Corrector (Medium) by Bravo. $22.95. [Bravo] Medical Grade Mesh Clavicle Brace and Posture Corrector Item#CLS-501 Ideal for treating scoliosis, early kyphosis by preventing excessive forward bending and forward curvature of the spine. Size available (measure circumference of chest): X-Small (17"-23"), Small (23"-30"), Medium (30"-36"), Large (36"-42"), X-Large (42"-48")