Dominican/Nicaraguan filler, Ecuador Habano wrapper, no idea what the binder is. Typical Ashton presentation and construction, some complexity of flavor, decent finish, absolutely nothing to dislike. Ashton says medium-to-full, I think more medium than full.
Not quite to my taste as much as others in similar price range such as My Father, Ashton VSG, or Padron 1964. That said, my only issue with Symmetry is that it's a pretty good cigar at a price point where you should reasonably expect greatness.