The Thermos brand is well known as the quality and performance leader in insulated food and beverage products. The Stainless King series creates a new chapter in Thermos' storied history with a modern line that blends out newest technology with a dash of the past. An ideal choice for people on the go, the Stainless King Vacuum Insulated Leak-Proof 24 Ounce Drink Bottle is built to last and loaded with features to make for a more enjoyable drinking experience. Thermos vacuum insulation technology virtually eliminates temperature change within the beverage container by creating an airless space between two stainless steel walls. The result is an insulation layer that performs better than any other. A superior insulated container you can depend on to keep your beverages hotter, colder, fresher, longer. This drink bottle is perfect for all day beverage enjoyment as it keeps beverages hot for 18 hours or cold for 24, making it a great choice for wherever life's adventures may take you. Constructed with double wall stainless steel, this 24 ounce drink bottle is virtually durable, yet its sleek design is both eye-catching and functional. The specially designed lid features a smooth flow design that helps control the flow of warm liquids. The Stainless King Leak-Proof Drink Bottle comes equipped with a locking lid which operates simply with the push of a button. And because of the double wall insulation, the stainless steel body stays cool to the touch with hot beverages and condensation-free with cold beverages. In order to maximize the incredible insulation technology, it is recommended to either pre-chill or pre-heat the drink bottle just prior to use. This can be accomplished by filling the drink bottle with cold or hot tap water, attaching the lid and letting it rest for a few minutes. Before you are ready to use, simply empty the water and fill with your favorite beverage. Attaching the lid will further increase the thermal efficiency.