This is the goal for wearing a waist trainer. The idea is to work up to being able to wear it for 10 hours a day for at least 8 weeks, and incorporate proper eating and exercise, you are going to absolutely love what you see. The results are amazing. The velcro closure assures you can wear it as tight as comfortable for you. It generates heat to help you sweat and burn more calories and it helps stabilize your back muscles. Great buy.