Behind the Design


After coming home from the 2013 Eugene Startup Weekend, Eric was motivated to move forward on his idea for a custom fit koozie for a mason jar. The goal was to create a koozie that looked great, felt great, and above all, promoted the use of safe and eco-friendly glass mason jars. Moreover, he aimed to appeal to not just the yarn, or leather koozie crowd, but everyone.

With that in mind, the goal was not just to create a great koozie, but the PERFECT koozie. Eric worked with local product designer, Alex Caves to invent the ideal koozie.


Conceptual drawings

From the start, we identified our unique lip that sits over the lip of the mason jar just below the threads as the key to the perfect koozie.

3D modeling

Then we used 3D modeling to create a digital model of the koozie

3D Printing

Next we used scale photographs to determine the profile of a mason jar to the nearest 1/100 of an inch and used 3D printing to make sure the final version would feel great in the hand

The Result

Our manufacturing partner produced samples in 3 colors for us. They look and feel perfect. We can drink hot coffee or cold beer out of our mason jars and then toss them in the dishwasher. It is a dream come true to see our vision in real life.

Thanks to our Kickstarter backers, we are able to bring the first premium Silicone mason jar koozie to you!