Eludium and Flawless Eludium are materials in Final Fantasy 16's The Rising Tide DLC that are used in the creation of several very powerful armor pieces. More specifically, Eludium is used to craft the Eludium Belt and Eludium Wristlets, while Flawless Eludium is used to craft the Reinforced Eludium Belt and Reinforced Eludium Wristlets. For those players who are interested in making those gear pieces part of their builds, this guide details the way in which Final Fantasy 16's Eludium and Flawless Eludium are obtained.