Black Diamond's Mega Light version , now that the got around to a Peak Vent.
the early Mega Mid's had no top vent and so got stuffy once the zipper was closed ..

and they offer a part B a combination floor and Mozzy net canopy
so the set up can be done and OK above Zero C where the bugs are not dormant.

SilNylon used in the MegaLight,. carbon fiber center pole.