[This review was collected as part of a promotion.] This cup does what I want, which is being spill-proof with carbonated beverages. I have had it run soda up the straw, but I’m making sure that I don’t fill it to the top, and that seems to work well. There is a sticker that shows the positions to turn the top to for sip, seal, and to remove for cleaning. The sticker is stuck on tight, but I wish those were printed directly on the cup. I love the color but I was disappointed to learn that the finish was not dishwasher-safe as I expected.
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