A waist trainer might be effective momentarily. Although they cannot result in weight reduction or a lasting alteration, waist trainers can make the waist appear smaller. Waist trainers are supposed to compress your waist and “train” your physique into an hourglass shape. They’re simply a corset with a contemporary twist. Composed of thick fabric and firm metal boning, waist trainers are wrapped around the waistline and tightened down using a lacing method. Check out various waist trainer before and after results online to decide.