SRD:Invulnerable Coat

Invulnerable Coat: The Invulnerable Coat is a +5 chain shirt of heavy fortification. It grants its wearer damage reduction 10/epic and resistance 20 against acid, cold, electricity, fire, and sonic energy. If the wearer can turn undead, treat the wearer as having +4 class levels for purposes of caster level, turning undead, smiting evil, and laying on hands.