Key Features of Sauna Sweat Vest for Men Burn More Calories: Boosts sweating and helps burn 300-500 calories in just 20-30 minutes, equaling up to 5 pounds of weight loss. Slimming Shaping: Tightens the belly, firms the abdomen, and trims your waistline for a toned look. 3X Sweat Intensification: The zipper sauna vest increases perspiration around the core, supporting your abs and back while improving posture during workouts. 10mm Neoprene Material: Generates heat to make you sweat intensely during exercise while keeping you warm on cold days. Perfect for workouts or cold environments. Versatile Invisible Design: Wear it under or over regular clothing; the black option remains invisible under your shirt during workouts. Package included: 1x Vest