This is a perfectly fitted soft to the skin nylon spandex knit tank top wear it to workout or down the street, or as your power undershirt, the compression is a secret between you and your garment. a chest binder breakthrough! it is not a girdle, nor a corset, but a tightly fitted undershirt. designed to give firm abdominal support, smaller waist and reinforce the lower back. the chest area looks tight and is held together. the sides of the vest feature a criss cross spandex technology to ensure all areas of the body are trimmed and tightly fitted in the vest special weave of 12 pressure points in the stomach area to ensure better belly shaping effect the mens body shaper singlet helps to protect the spine from backaches and muscular fatigue. stimulates muscular toning in the abdomen and is comfortable.