Armor Proficiency, Light (Combat)
You are skilled at wearing light armor.
Benefit: When you wear a type of armor with which you are proficient, the armor check penalty for that armor applies only to Dexterity- and Strength-based skill checks.
Normal: A character who is wearing armor with which he is not proficient applies its armor check penalty to attack rolls and to all skill checks that involve moving.
Endzeitgeist Says: Most classes that need this, have it. If you need this feat, consider multiclassing instead or take a look at your prestige class options.