Any drink that is hot, like coffee, can stay hot for up to 6 hours. Cooler drinks, can stay cold for up to 24 hours. The high-quality stainless steel and the double-walled insulation design ensures beverage can stay either hot or cold over time. A new slider lid is fast and simple to use. Also provided is the flip lid, which allows you to enjoy your drink safely. The tight clip seal on the flip lid helps prevent splashing and spilling.