Mithril Shirt

Armor +1: featherweight, stealthy
Featherweight: weighs 1/2 normal, max Dex
modifier 3, no strength requirement
Stealthy: can be worn under normal clothes,
does not impose disadvantage on stealth checks
Mithril Chain Shirt, 15AC + Dex (max 3), 10lbs.
"Oh, that was a kingly gift."