1.Hide your moobs,make your chest more flat;Make your stomache look smaller;Reduce the beer belly;trim the love-handles;Give you back support .This slimming body shaper vest make you seem lose weight even you do not do any exercise 2.The seam is sturdy and do not worry that the clothes might burst at the seams.It won't lose its elasticity even you use repeatedly.This slimming undershirts flatten the breast and stomach.Nylon and Spandex Mixed ,double compression for controlling tummy.If you want to look for fitting,this men body trimmer shirt is the perfect one for you.