What is Keko?

In a Keko drinks stay ice cold for 24 hours and piping hot for 12 hours.

Keko is constructed of two walls of 18/8 nonporous food grade stainless steel. This means it won't absorb flavors like coffee, tea, or soda and doesn't taste like metal.

Between the two layers of stainless steel is a vacuum insulation that does not transfer hot or cold.  So if you drop your Keko, don't worry there is no glass liner to break.

Keko is a bottle that you can leave in a hot car or on a sandy beach in direct  sunlight all day and still have ice cold water.  If you prefer hot drinks, Keko will keep them hot in those freezing temperatures.