Item Type: Ring

Item Rarity: Uncommon

Requires Attunement: Yes

D&D Beyond: Ring of Warmth

Source: Dungeon Master’s Guide

Consumable: No

If you take Cold damage while wearing this ring, the ring reduces the damage by 2d8.

In addition, while wearing it, you and everything you wear and carry are unharmed by temperatures of 0 degrees Fahrenheit or lower.