Thermos products deliver what matters every time. As the leading manufacturer of convenient insulated products for over 100 years Thermos is trusted by consumers to provide innovative portable containers that promote a safe and healthy lifestyle. Thermos delivers when it matters. Thermos brand products offer superior cold retention that keeps beverages cool and delicious for hours and the 2465 Vacuum Insulated Hydration Bottle is no exception. 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 colder fresher longer. This hydration bottle keeps beverages cold up to 12 hours more than 10 times longer than an ordinary plastic water bottle. Constructed with double wall stainless steel this 18 ounce bottle is virtually unbreakable and built to withstand the demands of everyday use. A comfortable silicone grip makes the bottle easy to grasp and the bottle is sized to fit most automobile cup holders. The Thermos 2465 Vacuum Insulated Hydration Bottle comes equipped with a hygienic push-button locking lid which can be operated easily with one hand. And because of the double wall insulation the stainless steel body stays condensation-free with cold beverages. In order to maximize the incredible insulation technology it is recommended to pre-chill the bottle just prior to use. This can be accomplished by filling the bottle with cold 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. The 2465 Vacuum Insulated Hydration Bottle is made of BPA-free materials and is backed by a five-year limited warranty. Insulated: Keeps cold for 12 hours with Thermos vacuum insulation technology Durable: Unbreakable stainless steel interior and exterior High Quality Materials: 100% BPA-free Capacity: 18 ounce