ZEROBODYS Men's Shaper Slimming Sleeveless T-shirt Elastic Body Sculpting Vest SS-M01 Grey Material: 80% Nylon + 20% Spandex color:Grey Stretchy Firm Tummy Belly Control Slimming Body Shaper Vest Undershirt Magic Compression Muscle Shirt this product pulls and firm up your stomach ,if you want to lose belly fat, the best way is combined with exercise and a healthy diet shipping time : it takes 9-12 working days