Amulet of Warmth

This item typically takes the form of a simple amulet or brooch, though it can be fashioned into some other form of personal jewelry.

An amulet of warmth produces an ambient cocoon of 70°F, protecting the wearer and his equipment from both cold and heat. If an amulet takes any amount of cold damage, however, it ceases to function for 24 hours.

As a free action, tapping an amulet of warmth turns the item on. Tapping it again turns the item off.

Lore: These devices were originally crafted for kobolds whose search for new mining locations kept them away from their warm lairs. (Knowledge [geography] DC 10 or Knowledge [dungeoneering] DC 20)

Prerequisites: Craft Wondrous Item, endure elements.

Cost to Create: 500 gp, 40 XP, 1 day.

Source: Races of the Dragon, page 123.