1Adjust up and down as well as the tightness according to your own conditions, double belt stretch adjust shoulder tension at will. 2Comfortable, breathable, light posture correction belt, use 3Y cross plastic line orthotic method. 3Shoulder, back, waist, side rib full of 360 degrees of balanced force, to achieve the waist, slim, straight back effect. 4Close to the shoulder curve, which disperses the pressure of the guide belt. The fixed force point on the shoulder to form the horizontal tension in the vertical direction of the body. 5Y design with broad shoulders, no friction with the back neck during wearing, reduce body load, comfortable to wear, suitable for all seasons
