Vikoros Men's Slimming Shirt Body Shaper Tank Top Vest Abdomen Support,5 Colors Nylon Imported Hand Wash Material: 80% Nylon + 20% Spandex You can wear it anywhere, anytime and if you are comfortable even during sleep Helps to protect the spine from backaches and muscular fatigue Stretchy Firm Tummy Belly Control Slimming Body Shaper Vest Undershirt Magic Compression Muscle Shirt