Sibote Fiery Sport Vest Corset for Women Choosing a gym-ready top that intensifies your workouts can certainly give you a confidence boost and motivation to work out more. The Sweat Enhancing Thermal Vest intensifies perspiration in your core by up to 3 times more than regular gym-clothing. All you have to do is: be active. The vest will fit snuggly around your midsection, working its magic from your shoulders, down to your waistline. It gives you back support, and guarantees a correct posture during your workouts. The vest is easy to put on, and stays on with no sliding, thanks to the wide straps and zip-closure.