Feat found in:                                         

Armorless Combat

You have trained to fight without depending on heavy armor to provide defense.

Prerequisites: base attack bonus +1; Tir Ydrail or the Ostmen Islands are homeland

Benefit: While wearing padded armor, leather armor, or no armor, gain 50% extra Dex bonus, rounded down, to your armor class.

Endzeitgeist Says: This is a nice feat choice for any character that uses the monk, rogue or similar "light" combatants with a high Dexterity. The fact that the bonus scales with your Dexterity means that your Dexterity-enhancing items will make this better than comparable feats in the mid levels. At low levels, I'd consider taking this with a Dexterity of 18+ a good investment.