This handy support gently pulls your shoulders back to improve posture. Wearing it for just an hour a day will retrain your muscles to support your back while standing, meaning you'll walk and stand taller. Can be worn comfortable under clothes. I really need one of these for work. I am probably the picture perfect example of bad work posture. Sometimes I find myself leaning on my desk with the screen 3 inches from my face. Yes, it's that bad.