The character imbues a suit of armor or a shield that the character touches with an enhancement bonus of +1 per three caster levels (maximum +5 at 15th level). An outfit of regular clothing counts as a suit of armor that grants no AC bonus for purposes of this spell.
Note: An enhancement bonus increases armor’s or a shield’s benefit to the wearer’s AC. A suit of armor cannot have more than +5 in total bonuses (even if some of its bonus is from other than enhancement).