It is way easier to handle and carry than the big Owala bottles, although it is a tad wider than the usual metal bottles, so it might not fit too well on car holders. Especially the narrow ones. But the issue that I don't really know how it can be solved is that it is not a one-hand move to drink water while driving, since now you have to untwist the cap. Just half a turn is enough, but it is hard to do one-handed. With the big bottles, you simply push a button and the cap flips open. Maybe Owala can devise such a system for the next version. Read more