This Thermos Nissan tumbler has a unique, grenade type lever action design, that opens the drink hole when activated, and closes once you let go. The stopper seals against the underside of the lid to prevent any liquids from escaping.
If you are looking to reduce the chance of damage from spillage, whether in your car, or in moisture critical environments such as data centers, this tumbler is the perfect solution for you!
All of the double wall stainless steel lined thermos vacuumware you will find at BaldMountainCoffee.com, are top of the line units. We do not carry products that are insulated with foam. Although Thermos does manufacture other, less expensive lines of products that do not include their TherMax™ technology, we carry only only Nissan Thermos products that DO include TherMax™ technology, as we feel they are far superior to what else is offered.