[Best sauna vest] Burn fat more than regular gym clothing,healthy weight loss,maintains body temperature,enjoy sweating, more attractive.Cause it helps accelerate sweating and detoxification, so you will find sweat more easily when you go miles walking [Good Material] The new Polymer vest will help rise the body temperature continuous in a short time to accelerate sweating while exercising. Sauna-like feeling will help make redundant water out of bodyfaster. [Easy clean] Sauna vest doesn't stink too much after prolonged use, easy clean and washable, please hang it outside to air dry [How to chooise your size] Please refer to size chart,If you are between two size, we'd like to suggest that you choose one size up. [Attentions] May feel tight at first wearing, adjust using time gradually according to body adaptation but less than 5 hours; Do not use it immediately after meal; Suggest wash it in time after using; Hand wash with cold water, no bleach or iron, with like colors, hang to dry with lining side towards the outside