How The MANSON Gyno Compress Zipper Vest Works? The MANSON Gyno Compress Zipper Vest isdesigned to reduce the appearance of gynecomastia by providing compression to the chest area.The compression works by flattening the breast tissue and reducing any swelling or tenderness. It also helps to improve posture and provides support to the back and abdominal muscles. The vest is made from a breathable and stretchable fabric that is comfortable to wear and allows dom of movement. Itfeatures a compressive layerthat canhelp to tighten and strengthen your chest muscles,you can gain better body figure by continuous wearing it. The first mens chest compressionvest to lessen the look of chest fat is The MANSON Gynecomastia Compress Zipper Vest. Your upper body will look toned, trim, and defined thanks to the immediate slimming impact of our chest compression vest.Its heat-trapping polymer fabricers users multidirectional chest compression and acupressure stimulation based on infrared heating and magnetic therapy. Seamlessly fit into your favorite t-shirts, sweaters and business suits comfortably.Our original chest compression undershirts are specifically designed for men to wear discreetly under any type of shirt. OurMANSON Gynecomastia Compress Zipper Vestwillprovide an increased body tone and reduce the appearance of pronounced chest fat made from ultra slim spandex materials.