Eshkätäran Half Plate
This armor has been specially crafted by the mage smiths of Eshkätär in Ä'Resh. They have found a way to layer adamantine, one of the hardest substances in existence, and mithral, which is a light, flexible metal, producing armor with a dark gray appearance. It has the strength of adamantine to deflect blows, and the flexibility of mithral to allow the wearer to move unencumbered. While you're wearing it, any critical hit against you becomes a normal hit, and if the armor normally imposes disadvantage on Dexterity (Stealth) checks or has a Strength requirement, the Eshkätäran version of the armor doesn't.
Half plate consists of shaped metal plates that cover most of the wearer's body. It does not include leg protection beyond simple greaves that are attached with leather straps.