Oh - I remember wearing some of those elastic tube tops. I would usually wear them under another shirt or jacket, but if I was just hanging around at home, I would wear it alone.
There were boob tube dresses that were also popular. The top part of the dress was just like a boob tube top, but it was much longer and was a dress instead of a top.
I haven't seen any of those around for a long time. They say if you wait long enough, the styles will come back around again. It will be interesting to see if boob tube clothing comes back in style any time soon.