LANFEI Men Sauna Sweat Vest for Weight Loss Neoprene Waist Trainer Tank Top Workout Shirt MATERIAL: 90% Neoprene, 10% Polyester. Comfortable, lightweight stretchy fabric increases body temperature and absorbs sweat to help speeding up the calorie burning process and reducing body fat while working out KEEP YOU FRESH AND COOL: Material wicks sweat, sleeveless design circulates air in your body to stay dry on the outside, helps you achieve fitness results faster and easier STIMULATES SWEAT AND SUPPORT: Preserves body heat and stimulates sweat during exercise. This sauna vest have the internal thermal active layer, which stimulates perspiration and significantly speeds-up your metabolism. Unique design provides your abdominal compression and lumbar support NOTICE: This neoprene sauna shaper has some material smell, it's pretty normal and would be gone after a few time washes WELL STITCH & ABUNDANT WEARING: Sweat Sauna Vest Stretchable to offer better Body Shaper. Wear Slimming Body Shaper under jacket or shirt around the house,when exercising,running errands or going out.You'll have a firmer posture,lower back support,and sweating all day with belly slimmer This Body Shaping Sauna vest instantly intensifies perspiration in your core by up to 3 times more than regular gym clothing. It fits snuggly around your midsection, working its magic all the way from your shoulders, down to your waistline, helps posture for back and abs as you workout or involved with daily activities. Neoprene stretchy fabric and moves with your body while performing any activity. It looks great &amp; matches with any combination of workout tops. Absorbs sweat so you&#039;re always dry on the outside. Unique design provides abdominal compression and lumbar support. Reduces Love Handles, Man Boobs and Belly issues with supreme compression Hand wash in cold water with a soft detergent. It is recommended to wash it after each use, particularly after exercising. Note: The product may arrive with a natural material smell that will fade away after a few washes.