懐疑者 4 I use this bottle mostly for water. It is very good quality and does not effect the taste of the water.I would prefer if the bottle was removable from the case. In addition, if you get water between the case and the top of the bottle, whenever you drink it will run down your chin. (See picture) The silicone seal should be at the top of the casing. Final point is that I don’t see any way to remove and clean the silicone seal in the lid. No problems so far, but it could be an issue if used for sugary drinks.