Answer:
The more you have of it the less you see. What is it?
What invention lets you look right through a wall?
I go in dry and come out wet. The longer I stay in the stronger my surroundings get.
My first is in some but not in all. My second is in tiny but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing rugs used every day.
In Paris but not in France the thinnest of its siblings.
In birth I spring forth, in life I unfold. In death I wilt and die, but rebirth restores all.