Adamantine Breastplate, +3

This suit of armor is masterfully made with crystalline adamantine, one of the hardest substances in existence. While you're wearing it, any critical hit against you becomes a normal hit. You have a +3 bonus to AC while wearing this armor.

This armor consists of a fitted metal chest piece worn with supple leather. Although it leaves the legs and arms relatively unprotected, this armor provides good protection for the wearer's vital organs while leaving the wearer relatively unencumbered.

Notes: Immunity: Critical Hits, Bonus: Armor Class, Combat, Warding