Unlike traditional camp mugs, this double-wall, vacuum-insulated body protects hands from hot or cold contents while keeping coffee, chilli, or oatmeal nice and hot. Like all Rambler Drinkware, the mug and lid are dishwasher safe. Please note: The mugs wide opening means contents may cool quicker. Thats why the mug comes with the MagSlider Lid. YETI's 14oz mug is big enough to double up as a camp bowl, so unlike traditional cups, it goes beyond hot brews. Because it's stackable, drinkware on the camp site will stay a bit more organised. The double-wall, vacuum-insulated walls will keep your liquid of choice hotter or colder for longer. 4oz / 414ml, 18/8 Stainless Steel, Double-Wall Vacuum Insulation, Stackable, MagSlider™ Lid, Dishwasher Safe, YETI.