FitnessSun Mens Tights Undershirt Compression Base Layer Abs Abdomen Slim 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, we used high-quality gift packaging material, as a gift for you friends and family is the perfect choice. Instant flat big Belly and big Boobs-Special weave design on abdomen, 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, release waist and back pain Size available from S-XXL-Please compare your size to the size guide in the left picture or description Breathable & Elasic fabric-Made of high quality nylon/spandex, very elasic and breathable for improving blood circulation and fat burning