The YETI Rambler 20 oz. Tumbler is a great product for those who want to keep their beverages ice cold or piping hot. This tumbler is double-wall insulated with an 18/8 stainless steel body, which means your drink will stay at its temperature no matter how much of a beating this cup takes. The YETI Rambler also comes with a lid to help prevent spills. This tumbler is perfect for those who are always on the go and need to keep their drinks at a consistent temperature. Whether you're headed to the gym or taking a hike, the YETI Rambler will keep your drink cold for hours. If you're working in a hot environment, the YETI Rambler will keep your coffee hot all day long. The YETI Rambler is a great product for those who want to keep their drinks at a consistent temperature. Whether you're headed to the gym or taking a hike, the YETI Rambler will keep your drink cold for hours. If you're working in a hot environment, the YETI Rambler will keep your coffee hot all day long.