Type: General
Sources: Races of Stone
Underdark
Choose a type of exotic armor, such as mammoth leather or tumbler's breastplate. You understand how to wear that type of exotic armor properly.
Prerequisite: Armor Proficiency of the appropriate sort (for example, you must have Armor Proficiency [light] to take Exotic Armor Proficiency (mammoth leather)).
Benefit: You are proficient with a specific type of exotic armor and take no armor non-proficiency penalties when you wear it).
Special: You can gain this feat multiple times. Each time you take the feat, it applies to a new type of exotic armor.
Normal: A character who is wearing armor with which she is not proficient applies its armor check penalty on attack rolls and on all Strength- and Dexterity-based ability checks and skill checks.