A re-usable alternative to putting a styrofoam cup on your ice coffee in order to prevent the puddles of water caused by condensation. I made these to fit medium and large iced coffee cups from Dunkin Donuts, but they also fit on the generic, re-usable, hard plastic travel ice coffee cups we have.
Basically, a big sock with a bottom for your ice coffee cup. If you can knit a sock you can knit these.
I used just under 20 grams of yarn per koozie so it’s a great way to use up scraps.

This pattern is the shorter version shown in the yellow- pink stripes. This pattern has been test knit by me only. The patterns are text only.