This suit of armor or shield produces a magical force that protects vital areas of the wearer more effectively. When a critical hit or sneak attack is scored on the wearer, there is a chance that the critical hit or sneak attack is negated and damage is instead rolled normally. The chance is 25% for light fortification, 50% for moderate fortification, and 75% for heavy fortification.
Strong conjuration; CL 13th; Craft Magic Arms and Armor, limited wish or miracle; Price varies, Light +1 bonus, Moderate +3 bonus, Heavy +5 bonus.