Planet Zak Fluted Tumblers Combine Insulation and Ease-of-Use

Planet Zak’s new Fluted Tumbler features double-wall vacuum insulation made from dual layers of stainless steel that help keep hot coffee or tea from cooling too fast on long commutes. The slim design allows the Fluted tumblers to fit into most car cup holders, and the vertical ridges that give the tumblers their name help commuters get a secure grip on the tumbler while keeping their eyes on the road.

And, to make that task even easier, Planet Zak developed a revolutionary lid for the Fluted Tumblers that provides one-hand operation and a self-closing valve that creates a spill-proof seal when the patented Liquid Lock push-button isn’t depressed. Not only does this innovative lid help prevent spills in the car or at the desk, it also adds another layer of insulation by preventing heat from escaping out of the top of the tumbler. And to ensure that it continues to function properly for years, the lid is simple to disassemble, making it easy to clean thoroughly.

The Fluted Tumblers are available in three stylish color options – chestnut, red, or stainless – and have a suggested retail price of $22.99 for the 16-ounce version and $19.99 for the 12-ounce tumbler. Both sizes are designed to fit under most single brew coffee makers, because if your coffee stays this hot, sometimes a single cup is all you need!