Poor posture can cause a plethora of problems: neck, back, and hip pain; headaches, and acid reflux.  Wearing this brace will help to align your spine and relieve that muscle strain causing the discomfort.  Simply pull the shoulder straps over your shoulders making sure that the magnets inserted are closest to your body, stretch the waist belt around your torso and close.  You can adjust the position to fit your body as needed.  Hand Wash in gentle detergent and air dry.