Force Armor (Armor Magic Property)
You must be level 21 or higher to equip, wield or wear an item with this property.
Force armor layers eldritch power in a filmy force-field of protection covering the entire form of the wearer, even over those places normally uncovered by armor. This renders the wearer immune to the Flat-footed condition. In addition, touch attacks made against the wearer no longer automatically hit on a die result of 17 or better. Instead, the touch attack must equal or exceed the wearer's AC, just as with a normal attack. Incorporeal creatures and creatures which normally bypass armor (making touch attacks) are foiled by the magic properties of force armor. Furthermore, the armor provides ER 50/force (energy, uncommon), protecting the wearer from force-based attacks such as Magic Missile (Sorcerer/Wizard Spell).
Multiple sources of Force armor do not stack with each other; instead, only the highest value is used.