Not too long ago, it seemed everyone was using a camelbak. Today, they are rarely seen in my area. Interesting how some things come and go.
What's missing: Those Nalgene bottles with the clear plastic dome that closed over the mouthpiece. Lucky me, I own five of them. For whatever reason,
they seem to have vanished. That plastic dome shielded the mouthpiece from the aforementioned road spray, and other nasties.