LODAY Neoprene Vest Hot Sweat Shirt Body Shapers for Weight Loss Womens Condition:Brand And High Quality; Material:90% POLYESTER And 10% SPANDEX Shaper girdle, Soft and breathabl material, 360 degree firm control on tummy and waist, Seamless, Front multiple hook and eye closure, Waist cincher Soft and breathable, it is comfortable to wear When worn during exercise, the compression stimulates thermal activity in your core which increases perspiration, allowing toxins to escape. Our size is not standard US Size.Please use our own Size Chart guide located on the left of the product image,do NOT use the Amazon size guide.