You are skilled at attacking opponents that you cannot clearly perceive.
Benefit
In melee, every time you miss because of concealment, you can reroll your miss chance percentile roll one time to see if you actually hit.
An invisible attacker gets no advantages related to hitting you in melee. That is, you aren’t flat-footed against the attacks, and the attacker doesn’t get the usual +2 bonus for being invisible. The invisible attacker’s bonuses do still apply for ranged attacks, however.
You do not need to make Acrobatics skill checks to move at full speed while blinded or unable to see.
Special
The Blind-Fight feat is of no use against a character who is the subject of a blink spell.