Exotic Armor Proficiency

(Shadowdale: The Scouring of the Land, page 149, DnD 3.5)

[General]

When you have this feat associated with a specific kind of exotic armor, such as spidersilk (see above) you understand how to wear that type of exotic armor properly.

Prerequisite

Armor Proficiency of the appropriate; for example you must have Armor Proficiency (Light) to take Exotic Armor Proficiency (spidersilk)

Benefit

You are proficient with a specific kind of exotic armor and that no penalty for lack of proficiency when you wear it.

Special

You can gain this feat multiple times, choosing a different type of exotic armor each time.

Normal

If you are wearing exotic armor with which you are not proficient, you take it's armor check penalty on attack rolls and on Strength-based and Dexterity-based skill checks.