Effective relief of back pain: This comfortable stand is designed to relieve chronic back pain, making it easy to work long hours or stand long hours. By correctly adjusting your posture, you can reduce the pressure on key parts, thus reducing the pain in your back, neck, shoulders and collarbone Stability: Our upper back strap ensures alignment and stability. Wearing the back brace for a long time can improve muscle memory, which means that you can keep upright even without a posture orthotic device Comfortable and durable: This upper back support belt can correct your posture in the most comfortable way. Fully adjustable and breathable, it can be easily worn even under clothes, conquering your day in an easy way Suitable for everyone: the commonly used four season orthotic device with adjustable size is suitable for back correction. Our upper back support strap is neutral and healthy. You can wear our orthotics when working, running, shopping and driving. It is suitable for anyone looking for the best shoulder and back support Invisible and difficult to identify under clothes: no need to worry about whether to fasten the back support belt. Our adjustable design is very careful and can be worn under a shirt or shirt. You can wear it at work, at home or when you go out. No one will know you are wearing it Product characteristic: 1. This product can effectively correct kyphosis, incorrect posture and other problems. 2. There are hook and loop buckles on the back, which can be adjusted according to your needs. 3. It is made of comfortable and soft materials, which will not cause any harm to the skin. 4. Whether it is worn externally or internally, it can always maintain correct posture. 5. The stretchable soft fabric reduces the pressure under the armpit, making it more comfortable to use. standard: Conditions: 100% brand new Item type: posture orthotic device Suitable size, weight and height Small size is suitable for people: 35-70kg (about 30-38cm shoulder width) Medium size is suitable for people: 71kg - 120kg (shoulder width is about 35-43cm) Large size is suitable for people: 121 kg - 186 kg (shoulder width is about 38~50cm) Packing list: 1 orthosis