MEASURE WAISTLINE & CHOOSE TURE SIZE: Professional sauna sweat vest and ordinary clothing size is different, available in various sizes and colors. Please refer to our size chart to choose the appropriate size for your Experience. | BORN TO SWEAT：70% Neoprene, 15% Polyester, 15% Nylon. Compared with the traditional sweat sauna vest, we have selected higher quality materials and zippers, plus outer adjustable belt, the fabric is softer, more elastic,and the zippers are more durable. | UPGRADED DESIGN & BACK SUPPORT: Scientific design and compression help you correct posture, special neoprene materials provide immediate abdominal pressure on waist and back support, Neopreno hombre helps perfectly fit your body contours, comfortable snaps to keep your shoulders straight and make you look more confident. this body shaper men sauna sweat workout vest can keep you warm in cold days. | FOR EVERYDAY WEAR: Upgraded neoprene waist trimmers zipper shapewear are easy to take on & off, the compression and elasticity of the vest makes your belly fat shrink and flat. You can wear a shirt, tracksuit, workwear and other everyday clothing outside the hot neoprene corset for home, running, basketball, gym or working, so you can always be in a state of fitness. | WARM TIPS: Men's abdominal neoprene waist trainer tank top has some smell, please rest assured that this will not harm you, due to the special nature of the material. After receiving the product with cold water soaked clean and ventilation treatment, the smell will gradually disappear after several uses.