Shackles, ropes and binds offer no impediment to your impressive fighting skills.
Prerequisites: Escape Artist 6 ranks, Improved Unarmed Strike.
Benefit: You suffer no penalties on attack rolls made while grappling and may make unarmed strike attacks when bound with any non-magical bindings, be they ropes, chains or shackles. You suffer no penalties on attack rolls or to Dexterity when entangled. If you are targetted by a net attack and defeat your opponent’s opposed Strength check to restrain your movement, you may, instead forcibly pull your opponent, moving him anywhere within the limit of the trailing rope he holds. Your opponent may drop his net as a free action to avdid being pulled about by you.
This feat does not prevent any movement-slowing effects suffered while bound or entangled.
Special: A fighter may select Fear No Binds as a fighter bonus feat.
Source: Dragon Magazine #355 (Page 76)