Title: Leak proof but difficult to clean
Review: This tumbler is great for keeping coffee warm and has never leaked. I am only giving it 4 stars because it is difficult to clean with hard to reach nooks where gunk can easily build up. In the future, however, I will stick with the style sold at Caribou Coffee, which is also stainless steel but has a simple flip top that is easy to clean and is also leak-proof. I think this is one of them, although it is hard to tell by the picture: [...]
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