The Maidartes

 is a belt.

Obtaining

 * Crafted by a Shoemaker (Lv. 100) from :
 * 6 Atomystique Tephra
 * 5 Steam Crackler Egg
 * 4 Solfatara Ulna
 * 35 Steam Crackler Heart
 * 11 Obsidemon Slag
 * 1 Obsidemon Vertebra
 * 36 Solfatara Residue
 * 40 Atomystique Stone