1---Corrector for firm neck and shoulder supports: hold it for 21 days and wear it for 1-2 hours daily, and you will take a healthy posture. The corrector for men and women helps you open your shoulders. While you open your shoulders, your posture will be upright, and the chest support can also effectively support your chest, making your body curve more clear, beautiful and confident in the workplace. 2---How it works: By pulling on your shoulders, your bones return to the correct position, making your bones healthier, improving your circulatory system, making your breathing more even, and helping you develop good sitting, standing and walking habits. 3---Adjustable and easy to wear: Soft, breathable, comfortable, ultra-light and ultra-thin elastic fabrics follow the scientific concepts of ergonomics and mechanics and form an exquisite, tailor-made, streamlined design with multiple structures. The shoulder wrap design on the shoulders ensures a more comfortable wear, breathable properties that are suitable for summer, and high-quality fabrics ensure that people do not have products. 4---Immediate relief from back pains: The corrector is designed to relieve humpback, neck and back pain in the chest caused by long-term work and looking at mobile phone and computer. This back brace is particularly suitable for people with light humps, people with a lowered head, long term desk workers and office workers. It offers you the best back support. 5---Suitable for men and women: This is visually comfortable and beautiful and light. When you wear it under the outfit, it is not easy to recognise. The back brace has a texture and still looks beautiful when worn outdoors. Suitable for many occasions, such as work, home, leisure, driving, walking and sports. Product Size: Shoulder width about 35~45cm. S: 25~40kg; M: 40~60kg; L: 60~70kg.