Suugest to use it on the surface of a shirt to prevent it from rubbing the skin.
If you feel it's too tight and cutting your circulation, you can loosen it up by adjusting the straps or just take it off and wear it again later.
The posture corrector brace is to help correct your posture, but won't assist or treat anything else. You might feel uncomfortable, but it will do help to your posture.

Package Includes:
1 X Posture Corrector Brace

• MiroDenKone Ideal rehabilitation equipment for fractures, sprains, collarbone pain, shoulder instability and posture corrections. The cushioned straps are thicker as the brace trumps the slimmer versions but stronger hold and proper positioning.
• MiroDenKone Two quality components that are tried and tested providing a breathable and extremely well made posture corrector.
• MiroDenKone Lightweight, washable, and suitable at home, working, or exercising. Movable D-Rings allow proper adjustment for optimal patient fit.
• MiroDenKone The corrector brace can gently aligned your shoulders into proper position and help prevent chronic neck, back pain, and improve your posture at same time.

MiroDenKone Ideal rehabilitation equipment for fractures, sprains, collarbone pain, shoulder instability and posture corrections. The cushioned straps are thicker as the brace trumps the slimmer versions but stronger hold and proper positioning.MiroDenKone