Mithral is a light, flexible metal. If the armor normally imposes disadvantage on Dexterity (Stealth) checks or has a Strength requirement, the mithral version of the armor doesn't.  Magic item crafted by Thore Pendragon Battle Mage and Smith to fight fiends.

Made of interlocking metal rings, chain mail includes a layer of quilted fabric worn underneath the mail to prevent chafing and to cushion the impact of blows. The suit includes gauntlets.

Notes: Stealth Disadvantage: Remove, Bonus: Armor Class, Resistance: Lightning, Attunement require to use, Combat, Warding, Str. 13 Required, Stealth Disadvantage