Vanrak’s Mithral Shirt
Medium Armor, uncommon
- Armor Class: 13 + DEX (max of +2)
- Weight: 20.0 lbs.
Mithral is a light, flexible metal. A mithral chain shirt or breastplate can be worn under normal clothes. If the armor normally imposes disadvantage on Dexterity (Stealth) checks or has a Strength requirement, the mithral version of the armor doesn’t.
While you wear this armor, you gain darkvision out to a range of 60 feet.
Source: Waterdeep: Dungeon of the Mad Mage p. 237