Features: M: Height 135-160 Weight 35-50 Waist 60-75 L: Height 155-170 Weight 50-65 Waist 72-85 XL: Height 165-180 Weight 65-80 Waist 82-95 XXL: Height 175-190 Weight 80-95 Waist 92-105 Adjustable shoulder straps are comfortable and can help you reduce shoulder pressure. You can adjust the appropriate length for you. Provide support for your shoulders and back. This will help prevent hunchback, reshape your body, correct poor posture and stand up straight, making you look better and feel younger. It will gently pull back your shoulders while you correct your spine, straighten your neck and head, it will greatly improve your bad habits and good lumbar health. Using high-quality stretch fabric, breathable and comfortable, comfortable to wear * The working principle of the back stabilization belt is to train the muscles and the spine to restore natural alignment. * Helps to improve back and shoulder posture, allowing you to stand straighter and more confident. * Relieve middle and upper back pain. Prevent the progressive curvature of the spine and change the bad habits of kyphosis. * Injuries to the chest, upper lumbar spine and clavicle and rehabilitation after surgery