Finding the right water bottle is a little bit like a Goldilocks and the Three Bears: Some bottles are too big, some are too small, some are made from the wrong materials, or the drink opening is the wrong shape for drinking from while working out, or too small to clean properly.
And then Bkr sent me one of their pretty bottles to try. And it was like I had found bottle nirvana. It was made of glass, which keeps water cool naturally, and won’t leach anything into liquids, hot or cold. Glass is also easy to clean, and Bkr bottles are covered with a translucent silicone sleeve, so even if you drop the bottle, it’s not likely to break (of course it still can, but so can plastic if dropped far enough).
And look how pretty they are!