Lobeve Mens Muscle Shirt Abs Abdomen Slim Body Shaper Sports Muscle Tank Top Material: 80% Nylon + 24% Spandex, Hand Clean or Dry Clean Made of high quality Nylon to stay elasticity and shape of body, which is different from many similar design of cheap material on the market, as a gift for you friends and family is the perfect choice. very elastic and breathable for improving blood circulation and fat burning, Instant flat big Belly and big Boobs-Special weave design on abdomen, instant flat the big belly, and strongly chest shaping to say goodbye to big boobs X-Shape Compression for correct posture- X-Shape design pull and raise your back so that to correct posture,Helps to protect the spine from backaches and muscular fatigue,Improve muscle efficiency and reduce muscle tremors and shaking Size available from S-XXL-Please compare your size to the size guide in the left picture or description