I’ve been trying to find a travel mug to replace the one with a crack in the lid that I previously used. Amazingly, the “premium” ones are either not dishwasher safe and/or not microwave safe. I’m certain I’m not the only one who heats up their coffee in the microwave after they get to work. And, we’ve already got enough things that need to be hand washed with the water bottles we use at workouts. If two different versions (one with a flip top and one without) weren’t sold as the same thing, I’d get the same inexpensive one I have now. I wonder why the manufacturer considers them to be the same version when the lid design is different.