Hydro Flask All Around Tumbler 355ml (12 oz)

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Keeps the drink warm really well. However, it is not suitable for transporting longer distances, because there is an air hole in the lid through which the drink is falsified. In other words, think of it as a coffee cup that keeps the heat, not a thermos in which you can take a drink on a trip.

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Good mug. Spills a little more than expected when pouring, but keeps the drink hot. In daily use.

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Maybe not quite the quality you would have expected. The mouth opening should be tighter when it's closed!

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A great coffee mug for everyday use at home. The cover is also good. Please note that it is not waterproof

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Seems pretty good. It's not completely sealed, but few thermos mugs are. A big plus is that you can wash it in the dishwasher.

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A handy mug for everyday use, but you shouldn't expect perfect waterproofness from this.

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The perfect thermos mug for daily use. A big plus is that it can be washed in the dishwasher. The product feels really high quality and it's easy to drink. A whistle fits in the mouth opening of the lid. In this mug, the coffee stays warm and the ice water cold much longer than a regular coffee mug. The lid leaks if the mug is turned upside down. Of course, I already knew this when ordering, but this information may be valuable to someone else. So you can't fill the mug with coffee and throw it in the backpack to spin, but when it's empty you can of course travel back home in the backpack. Even without a lid, this mug is nice to drink from. At home, I like to fill this with ice water and the water stays cold for a long time. I bought the product in white and so far, after a couple of weeks of hard use, the surface has not been discolored from dirt or coffee or scratched.

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A suitably small mug. Keeps heat well. The cover is tight but easy to remove and wash.