Price (Item Level): 34,000 gp (16th)
Body Slot: Torso
Caster Level: 18th
Aura: Strong; (DC 24) evocation
Activation: — and standard (command)
Weight: 3 lb.
This black silk robe is embroidered with adamantine thread in an elegant waterfall pattern.
An impervious vestment grants a +5 armor bonus to your Armor Class. This is a continuous effect and requires no activation.
In addition, you can command it once per day to create a blade barrier as a ringed wall of whirling blades only (20 feet high, up to 90 feet in diameter, centered on your current location). This effect lasts for 18 minutes or until dismissed as a standard action. As long as you wear the vestment, you can pass through your barrier without harm, though you receive no such protection against any other blade barrier.
Prerequisites: Craft Wondrous Item, blade barrier, mage armor.
Cost to Create: 17,000 gp, 1,360 XP, 34 days.
Source: Magic Item Compendium, page 112. Originally published as Dyrr’s impervious vestment in Complete Arcane, page 148, with a higher market price and armor bonus.