Cool ID Tumbler - Set of 2

By Magisso

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Say cheers to ceramic tumblers that keep beverages perfectly chilled. Submerge the tumblers in cool water to activate their natural cooling properties. This ceramic absorbs the water quickly, leaving the surface dry, so there’s no condensation, inside or out. Your drinks stay cool for hours. The matte surface is sophisticated and also acts as a chalkboard if you want to write on it.

  • Material: Food-safe ceramics
  • Care: Dishwasher safe
  • Contains set of 2 Cool-ID tumblers
  • Each tumbler holds: 19.2 fl oz
  • Keeps contents cool for two to four hours
  • Instructions: Soak tumbler in water for 60-90 seconds prior to use. Pour any cold beverage into it and enjoy
  • Cool-ID Tumbler will be approximately 40% cooler than the ambient temperature
  • Personalizable exterior–use chalk to create a design or write a personal message
  • Made in China
  • Dimensions: 3.7" x 3.7" x 6.5"
  • Weight: 0.9 lb

26 Reviews (4.1 out of 5 Grommets)

Sorted by Rating

Great Beer Glass

6/16/2019 by Jim

Got these for my dad. Then had my son buy them for me. The really do cool off and stay cool with just a quick soak in cold tap water. Tried ice water and it didn't make it stay cold longer. Haven't tried outdoors yet. Made a great fathers day gift for both of us.More > < Less



7/25/2018 by Jennifer

I got one for my hubby to try and now we have a set. I give these as gifts to any beer lover we know. They really do work! Enjoy your cold beer!


Cool cups

7/25/2018 by e

A hit with our hot climate family...


Was a gift

7/23/2018 by Sarah

I got these for my dad and his gf in Arizona. They love them! My dad is so hard to please with a gift and has a minimalist outlook about material possessions but this grommet really impresses. Worked well even in Arizona heat!More > < Less


Cool ID Tumbler

6/29/2017 by Janelle

These are wonderful. Stays cold. Feels good in your hand too. Great product. Need a wine glass too.
Thank you

Items 1 to 5 of 26 total

Mind blowing ceramic barware. Really.

About Magisso

Simply Brilliant

Magisso is a Finnish design collective that creates simple, beautiful solutions to everyday problems—and they’re constantly winning awards for their designs.

Their iconic cake slicer is a whole new approach to cutting and serving. Push the loop down to cut a neat, perfectly sized piece. Squeeze and lift to serve. No need to balance the slice as you move it to the plate.

That same brand of thoughtful innovation transforms beverage chilling with Magisso’s naturally cooling ceramics. Submerge them in cool water and the porous surface absorbs it quickly—almost like magic—and the outside becomes dry.

With the cool water inside, your chilled beverages stay cool for hours without needing ice. Plus there’s no condensation dripping onto your hands or table. The matte surface is an aesthetic and functional detail, too. It looks sophisticated while doubling as a chalkboard.

We can’t wait to see what simple, stylish solutions the Magisso team will come up with next.