Reinforced Insulated Sheath armor

Reinforced Insulated Sheath armor, or R.I.S armor for short, was a form of heavy yet flexible armor seen in use during the Galactic Civil War. Mol Ni'mai, a male Bothan living in the mountainss of Dantooine, was the inventor of the armor. It could only be crafted by the most proficient armorsmiths. Along with its more basic resource requirements of various metals and synthetic materials, it also required certain materials from various creatures within the galaxy. These materials included the bones from the woolamander harrower of Yavin 4, gurk king hides and great dune kimogila scales from Lok, and the feathers of the peko-peko albatross on Naboo.

History
R.I.S armor was the invention of the male Bothan master armorsmith Mol Ni'mai, which he called his masterpiece invention and claimed had no equal in battle. In 1.5 ABY, at the height of the Galactic Civil War, Mol was visited by a spacer at his hut in the mountains of Dantooine. The spacer was an armorsmith as well, and wished to learn from Mol. Mol demanded 50,000 credits from the spacer before he would agree to teach them, which the spacer readily paid. Credits in hand, Mol began to instruct the spacer in the construction of R.I.S armor, explaining the construction of its armor segment and its appearance layer. Once he was satisfied that his student had learned the basics, he tasked them with constructing a pair of R.I.S boots. The spacer was successful in making them, and Mol rewarded them with the schematics for the remainder of the armor pieces.

Behind the Scenes
R.I.S armor is a type of battle armor in the 2003 MMORPG Star Wars Galaxies: An Empire Divided. The armor, along with its designer, and the quest to learn how to craft it, were added to the game in 2004. The player must be a master armorsmith to craft this armor. Prior to the addition of Mandalorian armor to the game, the R.I.S armor was the most difficult to construct, as it required many rare items from creatures both difficult to find, and to defeat.