While Rhodia may be considered standard for pens, the paper feels much thinner than 80g.

For a pen, the writing feel is nice, it's smooth, it doesn't spread the ink, it doesn't bleed through to the back of the page, but it is quite thin and has some transparency.

Very good paper, not particularly expensive for what it offers.
When used with a pen, there is not even any ghosting, you can write on the back side as well.
It cuts easily without leaving any paper scraps, although not so easily that it would cause concern and accidentally cut.

It is widely known as a reference paper by fans of meticulous writing. Of course, correspondingly, its price is...