A few pieces of Zegna summer jacketing from the 1970s.
They are in the range of 260-300 grams, though not like modern fabrics in that weight class. These jacketings from the 1970s are based on thicker wool fibers and twist yarns, which make the cloth more crease-resistant than modern light weight fabrics.
Moreover, the tailor has a chance really to shape these old style summer jacketings with the iron.
Oh, and a length of Mario Zegna chesterfield overcoating, also from 1970s.