Benry Neoprene Slimming Vest Men's Womens Sport Waist Training Corsets Vest with Zipper for Weight Loss,Muscle Building,Cardio Endurance and Core Strength The vest is easy to put on, and stays on with no sliding, thanks to the wide straps and zip-closure. The Sweat Enhancing Thermal Vest intensifies perspiration in your core by up to 3 times more than regular gym-clothing! 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. Full length chest zipper. Asian size runs small. Neoprene smell but easy to eliminate.