a gray version of this bottle I have for many years and am very happy with it: The bottle is beautiful, you can drink out of it well and easily it is on top of that also. I have the S ... aluminum tanks full, despite the coating oxidize over time inside and an unpleasant taste accept (although always was only water d'rin). Not so with this bottle: once a month I rinse them with water and vinegar and it remains forever tasteless. Quite clear recommendation on my part.
