This tumbler has a capacity of 20oz and the double vacuum insulated construction allows hot and cold drinks. Tumblers are made of 100% BPA free 18/8 food grade stainless steel. Allow hot liquids to cool to a safe temperature and make sure lid is secured properly before consumption, do not overfill with hot liquids. Do not clean using bleach or products containing chlorine. Top rack dishwasher safe, although hand wash is recommended. Do not use in microwave. Tumblers comes with a plastic reusable straw. We work with a technique called SUBLIMATION. Sublimation transfers ink PERMANENTLY onto a product and the ink becomes part of the product. So you will never have the design fade or peel. On full wrap designs, a seam may be seen on the back of the tumbler. These tumblers will keep your drinks hot or cold for hours.