Roludom Men's Slimming Trimmer Body Shaper Vest Underwears Tank Top Roludom Men's Slimming Trimmer Body Shaper Vest Underwears Tank Top Material: 80% Nylon + 20% Spandex Stretchy Firm Tummy Belly Control Slimming Body Shaper Vest Undershirt Magic Compression Muscle Shirt Helps to protect the spine from backaches and muscular fatigue Improve muscle efficiency and reduce muscle tremors and shaking