32oz Stainless Steel Malt Cup Sleeve

My wife wanted us to stop using plastic drinking tumblers and straws, but I was unable to find any glass tumblers that held enough water.  I drink a lot of water, so I wanted something that would hold at least 32oz. I found these 32oz stainless steel malt cups, but after using them for a day, I found them to be not pleasant to hold on to when they are full of ice water.  

I started designing a sleeve to keep my fingers from freezing and getting wet from the condensation, and this is the fourth iteration of that design.  I also found these stainless steel straws to replace the plastic ones I used, because I am one of the lucky people with sensitive teeth, even with using the sensitive toothpaste.

Most of the sleeves are printed in Atomic translucent filament.

The sleeves get a gentle hand wash with dish soap and a rag, and the cup and straw go in the dishwasher.