Boots of the Winterlands

From Dungeon Master's Guide, page 156. Found on Magic Item Table F.

Description
Wondrous item, uncommon (requires attunement).

These furred boots are snug and feel quite warm. While you wear them, you gain the following benefits:
 * You have resistance to cold damage.
 * You ignore difficult terrain created by ice or snow.
 * You can tolerate temperatures as low as -50 degrees Fahrenheit without any additional protection. If you wear heavy clothes, you can tolerate temperatures as low as -100 degrees Fahrenheit.