Zipper closure [SPECIAL MATERIAL]: 90%polyester+ 10%spandex. Men’s compression shirt is constructed by stretchy and lightweight fabric which can provide more suppor than general net fabric and more comfortable wearing experience than neoprene material. It suck every excess fat in to improve your appearance of tummy and chest. [NEW UPDATED VERSION]: zipper closure design, buckles on the top can make it firmly control your tummy, breathable and moisture wicking shapewear could fit your figure at the most extent. Makes you easy put on and take off. Racerback design allows free movement, full coverage even your lower belly! [2 SPRIAL STEEL BONES]: Gives you strong back brace support as well as correct your posture that makes you look better. To reshape body in better condiction, this including help tighten loose skin after you lose weight and squeeze man moobs in to hide gynecomastia, slimming shapewear make you lose inches by redeucing unwanted love handle. [SLIMMING UNDERGARMENT]: You could wear it alone while exercising or wearing underneath any kind of clothing, such as workout shirts, t-shirts, sweaters and formal shirts. The slimming compression is a secret between you and your garment. A chest flattening breakthrough! This is an excellent shirt for the man who wants to enjoy a healthy looking figure without the need for surgery or medications. [WARM TIP ]To select the size which fit your figure at the most extent, please read the product image of our Size Chart. If you are not sure your size or have other question, please feel free tp contact us, and we will give you response in the first time.