Multiple lids on thermos mugs are defective (holding liquid inside and gradually leaking out into new drinks). The model in question: Thermos 16oz Stainless Steel King Travel Mug Matte Black (and silver) .
Two lids both doing the same thing, holding old liquid and leaking the old liquid back out into new drinks.
We bought these two mugs together with their attached lids at a physical walmart store.
LIds holding water or old coffee on the INTERIOR and then leaking the old liquid out into new drinks over time.
This is the Thermos model in question
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