DescriptionThis is an Adjustable Back Shoulder Posture Corrector.Reshape your posture, make you more confident and healthy.Piggyback design, more convenient to wear.Super elastic fiber, tensile strength, better effect.Four seasons can be used.Feature- Color: Khaki. - Material: Nylon and polyester.-Size M: 70-84cm(Bust); 40-50KG(Fit Weight); - Size L: 82-95cm(Bust); 50-65KG(Fit Weight); - Reshape your posture, make you more confident and healthy. - design, more convenient to wear. - Super elastic fiber, tensile strength, better effect. - Four seasons can be used.