Cloak of Elvenkind

Wondrous Item, Uncommon (Requires Attunement)

While you wear this cloak, Wisdom (

Wisdom (Perception) allows you to use a combination of senses to notice something that's easy to miss.

) checks made to perceive you have

If you have Disadvantage on a D20 Test, roll two d20s and use the lower roll. A roll can't be affected by more than one Disadvantage, and Advantage and Disadvantage on the same roll cancel each other. See also D20 Tests.

, and you have

If you have Advantage on a D20 Test, roll two d20s, and use the higher roll. A roll can't be affected by more than one Advantage, and Advantage and Disadvantage on the same roll cancel each other. See also D20 Tests.

on Dexterity (

Dexterity (Stealth) allows you to escape notice by moving quietly and hiding behind things.

) checks.

Source: Dungeon Master's Guide, p. 244