Yeti 30oz Travel MugsThis 30oz travel mug has double wall vacuum insulated body that protects hands from hot or cold contents while keeping coffee, chili, oatmeal you name it well insulated. Tumbler and lid are dishwasher safe making them easy to clean. The MagSlider Lid adds an additional barrier of protection to prevent heat or cold from escaping, but please note the magnet component is not leakproof and will not prevent spills. Important: Do not place tumbler over