Ring of warmth

A ring of warmth protects the wearer from cold environments. While wearing the ring, the wearer is considered to be fully protected against all cold temperature bands up to extreme cold, and partially protected against unearthly cold (−50 °F or lower). He gets a +5 bonus to saving throws against the effects of cold environments.

A ring of warmth also protects the wearer from cold-based attacks, reducing the damage taken from such attacks by up to 10 points per round. (This does not apply to damage caused by environmental conditions.)