Furled leaders are made of polyester and offer unbeatable suppleness, no memory and excellent energy transfer.
Untreated so it sorta hovers just below the surface.
To use, just add 2 to 3 feet of tippet to the tippet ring, then attach your fly to your tippet. Longer tippet sections can be built out by adding a small section (1-2 feet) of material a
size heavier than the final tippet section.