My Nalgene was great, but the one thing that sort of annoyed me about it was the mold that would grow at the top of the silicone mouth opening over time. Even after cleaning, the black mold would be there. I believed it was clean, but it was unsightly. So I'm trying this new Thermos Nissan Intak Hydration water bottle out instead. It's priced well (just $11) and includes the handy locking clip that I need when I throw this water bottle into my backpack.
A part of me wishes that this bottle body was just straight rather than curved but that's not a dealbreaker I guess. So far, so good. And it looks nice too. Need one?