On the train, in the car, at the office, or during a relaxing autumn walk, you can always sip a drink of your favorite beverage with this Stainless Steel Insulated Mug. The convenient pressure system allows you to easily open and close your mug. The double-wall construction ensures that your drink stays hot or cold for 6 hours. When you've finished your drink, you can simply reuse the mug by refilling it or putting it in the dishwasher for easy cleaning.