How Does The MenUp Gynecomastia Compression Tank Top Works? This compression tank top creates sensations of heat without other energy sources like electricity. Based on Infrared heating, magnetic therapy, this heat trapping polymer fabric provides users with multi-directional chest compression and acupressure stimulation. It helps to effectively stimulate the body's blood and lymph circulation to relieve Gynecomastia and reduce fluid buildup and cellulite in the body. It can effectively slim down the chest area. The chest area may be the most difficult part to work out, but this tank top helps and assists your hard workouts. Provides an immediate chest slimming appearance. Doesn't lose its compression binding. This is made to provide a slimming looking chest and abs underneath all kinds of clothing. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.