The YETI Rambler Lowball is an insulated tumbler for hot or cold beverages. This is the one. The 10 ounce cup that will help wake you up in the morning when filled with hot coffee. It'll hold ice and soda, keeping it mighty cold during an afternoon lunch break. When the stars come out, it'll hold a little whiskey as you chill out fireside after a long day. It won't sweat all over your hand when holding it or on your jeans when resting it as you sit. The double-wall vacuum insulation helps keep the hot drinks hot and the cold ones cold, for quite a long time. It doesn't include a lid, but they're definitely available so pick one up if you're heading out the door and need to minimize the spills.