Vacuum Insulated 18oz Hydration Bottle - Stainless Steel with Grey GripThermos 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 14 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 it with your favorite beverage. Attaching the lid will further increase the thermal efficiency. Features:Thermos vacuum insulation technology for maximum temperature retention; keeps 14 hours coldDurable stainless steel interior and exteriorStays sweat-proof with cold beveragesPush-button lid with locking ring secures beverages when closedRapid flow spoutThe silicone sleeve is easy to gripFits most automobile cup holders