RIS armor

The 2nd in rarity after the Mandalorian Armor.

It is crafted by certified armorsmiths (armorsmiths that have completed a specific quest) and requires very rare resources to be crafted:

Woolamander Bones Giant Dune Kimogila Scale Peko Peko Albatross Feathers Gurk King Hide

and of course the Interwooven R.I.S. schematic.