Superior ice retention and heat retention! Kuuma Tumblers work to keep your beverage at the right temperature, just the way you like it. The double-wall and vacuum-insulated tumbler features a press lid with full sealing gasket to eliminate spills. Tumbler offers a sweat-free design so you'll never need to use a coaster. Convenient for travel, the tumbler is easy to carry and has an extremely durable construction.