Question: how to get eygon armor?
Answer: First of all, you'll have to find Eygon of Carim in the Undead Settlement. ... 
Eygon of Carim is the keeper of Irina of Carim, who can be found in a cell near him. ... 
Once they are in Firelink Shrine talk to them both.
To start the next step, you have to kill Dragonslayer Armour.