Great idea for a slimming shirt. For hairier folk it causes further perspiration so be aware. The feeling & support for a tighter torso is a great benefit to the chest & spine along with the entire body stature. It's a great, healthy feeling wearing this shirt.
 The patchwork of the tanktop's back sections off the tightness of the different muscle areas effected by the technology. It's difficult to keep an overshirt on when this undershirt feels so good on the important parts of the body's comfort.