1.Back Brace: The back support brace helps you open your shoulders, the back and waist, promotes blood circulation to alleviate fatigue and eliminates back, shoulder pain and muscle stress. This back brace for posture is a great entry point into a good, y posture for those looking to try a back support device. 2.Comfortable to Wear: The back straightener is made from lightweight, breathable materials and extra strong mesh, suitable for long-term wearing in four seasons which won't hurt your skin. 3.Health Improvement: The full back posture corrector has two strong supports to help quick fix your back and provide support around your waist. The posture corrector supports for improve the Hunchback, Bad Posture, Spinal Support, Back & Neck Pain Relief for Women and Men. Our back brace can train your posture and develop muscle memory. You get an improved pose that can make you look taller and slimmer. 4.Adjustable Size: Back posture corrector has two adjustable straps and velcro beltis, allow you to adjust tightness accordingly. The back straightener has multiple under-bust sizes to choose: fits waist circumferences between 28.5 to 45.3 inches.