Shaping your chest, waist and stomach, it is designed for men . you gym or siwm,it not roll up and it stay in place pretty. And it is specifically designed to reduce the appearance of Gynecomastia or "man boobs",and deal with "beer belly". able for improving circulation and fat burning, and strongly chest shaping. It helps with back support and posture. been visually being losing belly or chest fata and it does flatten the breast and stomach.REVOLUTIONARY SLIMMING UNDERWEAR - The ming compression vest is a secret between you and your garment. Shape your chest and belly from the visual, flatten the breast and stomach, "man boobs", deal with "beer belly". compression shirt is the fastest practical safe way to provide an immediate chest and stomach ming appearance, give you a nice body shape and wear whatever you want.KEEP FIT -when watch the good body shape by wearing this vest, it will keep remind you to lose weight and keep fit and build confidence.