# Necklace of Adaptation *Wondrous item, uncommon (requires attunement)*  - **Weight**: 1.0 lbs. While wearing this necklace, you can breathe normally in any environment, and you have [Advantage](Mechanics/CLI/rules/variant-rules/advantage-xphb.md) on saving throws made to avoid or end the [Poisoned](Mechanics/CLI/rules/conditions.md#Poisoned) condition. *Source: Dungeon Master's Guide (2024) p. 280. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)*