RockWearZ Men's Compression Undershirt Bodywear Vest Shirt Body Shaper Underwear 20% polyester Slimming under shirt features firming panels help trim and tighten your chest, back and stomach to make you look pounds thinner instantly.It is a revolutionary slimming and lifting undergarment, which has incredible assistant for men's slimming effect. Provides back support to promote better posture and invisible under clothing. Due to its continuous tight feeling, this corset will help male to burning fat and feel more delight while doing exercises. The ultimate body shaping undergarment for men create a lean appearance & build abdominal muscle, it is a belly body shaping vest that can tighten and shrink your bulging stomach. These slimming tank top are the perfect workout tanks for six pack abs, it will keep remind you to lose weight and keep fit and build confidence. MATERIAL: 80% Nylon+20% Polyester fiber. (For Size do not refer to Amazon Size chart. Please refer to the SIZE CHART in the description below). IF there is any doubt about the size you should buy, please contact us before buying.