Lover-Beauty Men's Slim Compression Muscle Tank Shapewear Workout Vest 20% spandex Excellent men's body shaper for men slimming shirt tummy waist vest Men's body shaper smoothes and shapes your midsection to make you look pounds thinner instantly Slimming under shirt features firming panels to help trim and tighten your back and stomach Provides back support to promote better posture And invisible under clothing and Microfiber Smooth 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, pls recognise it before you choose