Merric appears to be wearing a unique set of Orichalc Redguard Heavy Armor.
Though that specific set isn't craftable ... standard Redguard Heavy Armor is pretty close and is craftable. Just make sure you have learned the basic Redguard motif to craft. The "jeweled" chest piece only appears on level 36 crafted Heavy or higher.
Edited by Taleof2Cities on October 28, 2016 8:02AM
"May you walk on warm sands."
"First, I would ask that you look to the poor and the suffering around Cyrodiil. Look into their hearts, and then look into your own."
"May Auri-El's light guide you in your darkest hours."