Because we use the mobile phone and laptop for long periods, whether at work or anywhere, or when we sit at the desk for a long period, over time we find that our sitting position is wrong and we begin to complain about the neck and back vertebrae, and it also affects the shape of the body. 
This belt straightens the back and shoulders, giving the back a straight shape and protecting it from problems that may occur due to a curvature of the back. It is lined so that it does not irritate and does not show under clothes, and it is easy to use because it is free size.