HIGH QUALITY & BREATHABLE CHEST COMPRESSION FOR MEN*Our chest binder for men is made of 88% Nylon&12% Spandex,the mesh fabric is breathable,very tight against the skin. Mens compression shirt almost feels like you are wearing nothing,like your second skin,there really comfortable even to sleep in. The gynecomastia compression shirt has the effect of reducing muscle fatigue. While playing golf and they do an incredible job of wicking the moisture and helping keep you cool without any discomfort. *SPECIFICALLY DESIGNED FOR GYNECOMASTIA* Our chest binder features a double fabric front , it is specifically designed to reduce "gynecomastia" in men, provide support for those who have had a mastectomy, help restore self-esteem. Reshape any problemareas around the chest with the required compression. Allows you to move freely while you work or play without disturbing, ensuring your chest doesn't wobble while you run, but you're still able to move and breathe freely with extra safety. 88% Polyamide, 12% Elastane Machine Wash, Dry Clean Only Fastening: Eye Collar Style: Collarless Corset