This armor piece is said to have belonged to the great rogue known as the Willowing Wisp. They were renown for their ability to seemingly be somewhere and then not. To cross tough terrain as if it were flat. If one collected the whole set which included a short sword and a curious looking hat, they would be nearly impossible to detect. This armor was last seen in a museum in Neverwinter...

While wearing this armor you are considered to have the "Medium Armor Master" feat, eliminating disadvantage on stealth checks due to wearing this armor and allowing you to add 3, rather than 2, to your AC if you have a Dexterity of 16 or higher and you have resistance to cold and fire damage and ignore difficult terrain created by ice or snow. You can understand and speak Undercommon and have Tremorsense up to 20 ft.. In addition, the armor's gauntlets turn unarmed strikes with your hands into magic weapons that deal bludgeoning damage, with a +1 bonus to attack rolls and damage rolls and a damage die of 1d8.

This armor as 2 charges.
If the wearer is in dim light or darkness, they can expend one charge to cause any nearby shade and shadow to cling to them and obscure their form, as if casting the Blur spell. After a long rest, 1d4 - 1 charges are restored. (Yes, it is possible to have 0 charges restored.)

Curse. Once you don this cursed armor, after the 1st day you can't doff it unless you are targeted by the remove curse spell or similar magic. After 3 days, your alignment will turn from good to evil unless neutral or already evil, the remove curse spell or similar magic cannot reverse this. Only divine intervention can prevent it. If a character is neutral, they will remain such.

This armor consists of a coat, gauntlets, and leggings. It looks nearly see through and is completely silent.

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: wearing it for three nights in a row under a full moon., Str. 13 Required, Stealth Disadvantage