Adjustable Back Posture Corrector Back Posture Brace Lumbar Back Support Belt Shoulder Brace Note: We do not recommend using this product all day, as it may lead to excessive strain on the back muscles. Our back posture corrector provides more effective support to your posture that will help you develop muscle memory to keep your back straight overtime. Features: Opens shoulders and straightens back to provide effective posture correction. Hook and loop design, adjustable tightness. Human boday mechaincs design is more suitable for back spine. Helps improve your overall spine health, Improve confidence. Made of Polypropylene fiber and spandex, lightweight, soft. Can help to prevent the onset of back, neck and shoulder pain. Suitable for people with slight hunchback, people with bowed heads and office workers. You can use it at home, office, gym, yoga room, outdoor when you are doing housework or watching TV. Specifications: Material: Polypropylene fiber, Spandex Size Guide: S: Chest circumference: 55-65cm, suggest height: 125-150cm, suggest weight: 15-25KG M: Chest circumference: 60-70cm, suggest height: 135-160cm, suggest weight: 25-40KG L: Chest circumference: 70-80cm, suggest height: 145-170cm, suggest weight: 40-50KG XL: Chest circumference: 75-85cm, suggest height: 155-175cm, suggest weight: 50-57KG 2XL: Chest circumference: 85-95cm, suggest height: 165-180cm, suggest weight: 57-65KG 3XL: Chest circumference: 90-100cm, suggest height: 175-185cm, suggest weight: 65-90KG Package Content:1 x Back Posture Corrector