The Sipp by Thermos Vacuumware line combines sleek style with unique functional features. We"ve used the best materials we could find and added clever features like integrated tea hooks. Featuring Thermos vacuum insulation technology, your food and beverages will stay hot or cold for hours. Thermos knows how much hot matters to commuters, and that"s why we"ve developed the Sipp Leak-Proof Drink Bottle. The flip-top lid has an innovative drink well that controls the flow of hot liquids, making it easier and safer to sip hot beverages directly from the bottle.