Sorry for the bad photo, I am currently sick in bed. I thought I should leave a review of how this item changes my life even though I only use it a couple of times per year. This is the sleeve that lets me make one giant half gallon of tea with honey and lemon when I am sick. I’m a parent of young children and I work and I do not have time to be handwashing fussy thermoses. I need something dishwasher safe that can hold so, so much tea at once so that I don’t have to keep remaking it. At night when I have a sore throat and I’m congested I keep my giant tea vat next to my bed and sip a little bit every time I wake up and it really, really helps.
It isn’t spill proof, but it’s pretty heavy and hard to tip over. It isn’t insulated, but it stays an acceptably warm temperature for a long time. I firmly believe that you, too, might need a giant tea vat. Pro tip, if you have two different sizes of silicon straw in your house, you can conjoin them and get a straw that reaches the whole way to the bottom. Don’t try to drink this thing by tipping it, it’s too heavy, because it’s giant. It’s the best and I love it.