You get into enough unarmed scrapes that you're practically skilled at it.
Prerequisites
Brawl, base attack bonus +4.
Benefit
You no longer suffer a penalty on attack rolls when attempting to deal lethal damage with an unarmed attack.
When making an unarmed attack, you receive a +2 competence bonus on attack rolls, and you deal damage equal to 1d8 + your Strength modifier. (1d6 + your Strength modifier if you are Small).
This replaces the benefits of the Brawl feat and does not stack with them.
Special
This damage increase does not stack with that granted by the Monk class.