The Zeidrich Armor is one of the most powerful in the series providing high stat boosts and protection from all elemental attacks.
Next to the Mystile Armour it is the most powerful in Final Fantasy VII with massive defense stats in both magic and physical attributes. Combined with ability to half all elemental attacks it is an extremely effective line of defence only rivalled by the Mystile.
It has appeared in Final Fantasy X as Atlas which is a shield for Rikku that is obtained when the dominant set up is Break HP Limit. In a more recent appearance it is the best shield for Noctis and Gladiolus and is one of the rare legendary weapons in Final Fantasy XV.