Unlike traditional camp mugs, this double-wall vacuum-insulated body protects hands from hot or cold contents while keeping coffee, chili, oatmeal – you name it – well-insulated. The mug’s wide opening means contents are easily accessible, but will cool quicker. That’s why the mug comes with the standard Rambler 30 oz. Lid. The full-loop Triple Grip Handle is comfortable for wider hands, so you can fit your mitts fully around your morning joe.