This large 12.5 ounce mug comes in a variety of colors and is convenient for carrying a drink, on all trips and excursions. It features a stainless steel lining to make it easy to clean and extremely durable. This mug can handle the wear and tear that occurs from many uses. The leading EVA foam exterior keeps your drinks warm at all times, but does not transfer the heat outside of the mug to your hands. The insulated sleeve that comes with the mug is completely removable, making the mug machine washable as an added convenience. If you have looked for a great mug to use in the outdoors you should buy the MSR Stainless Steel Insulated 12.5 ounce Mug.