These extremely durable and convenient Kuuma tumblers, insulated cups and can coolers use double wall vacuum insulation to keep your drinks cold all day long. No heat or cold can penetrate! Available for a can or in 12, 20, 30 ounces for the tumblers. Its name is from the Finnish. The Word means "Hot." Its metal construction, along with its insulated layers, keeps the temperature of your drinks at a close to constant temperature. All products are tested 100% before shipment.

What’s the Science Behind Keeping your Drink at a Constant Temperature?

When it comes to maintaining your drink at a constant temperature, whether hot or cold, applied technology needs proper insulation to keep the outside temperature from altering the inside temperature, and an air-tight seam, not allowing the moisture to escape.

Kuuma has developed cutting-edge technology to keep your liquid inside the Kuuma tumbler at a constant temperature longer. It does this with double-wall vacuum insulation and a press lid with a full sealing gasket. On top of this, it’s engineered a tumbler that does not need a coaster - it is sweat-free. It is extremely durable, convenient and easy to carry.

The double-walled vacuum insulation technology dates back to 1892, when Sir James Dewar, a Scottish scientist, through his research in the field of cryogenics, developed the vacuum flask, which maintained a more constant temperature of the liquid inside his experimental flask, than the outside temperature. The secret is in the vacuum between the two walls.

So when it comes to keeping your drink at a constant temperature, the Kuuma cup technology is the scientific magic that does the trick.