In-vest in this Men's Sauna Heat Trapping Sweat Vest Choose from S-4XL Please see images for full size guide Shaping vest traps body heat and stimulates sweat during exercise  Absorbs the sweat so you can stay dry on the outside Wear for exercise or wear everyday for extra body shaping The comfortable, stretchy fabric moves with your body while performing any activity Work up a sweat with this Men's Sauna Heat Trapping Sweat Vest for 12.99 pounds