There's an amazing set of armor found very early in Kingdom Come: Deliverance 2 but it's only available if you're ready to steal it. Crime isn't for everyone, but there are two ways to steal everything you need off a very well-equipped NPC.
The best armor set in the Trosky region is worn by a guard in Semine -- and getting his armor is going to be tricky. This former bandit only appears after progressing the Wedding Crashers quest and joining Lord Semine on a hunt. Complete The Jaunt quest and you'll fight Gules with his group of bandits. You won't be able to loot Gules, the bandit leader, during this quest. But you'll get a second chance. After completing the quest, he'll reappear in Semine, in the fort as a Guard Captain. He's wearing his fancy, high-quality armor set, and you can steal it right off him.
Gules is the Guard Captain in Semine Castle, the small fort on the east side of Semine Village. The guard captain will only appear after completing the quest The Jaunt -- after travelling to Semine, you'll encounter angry drunks. Lord Semine and his advisor will travel with you to hunt bandits in Apollonia. There, you'll encounter Gules. After defeating him and his bandits, you'll see Gules appear at Semine Castle.
Once you find him, you can start stealing from him.
The best way to rob Gules is by sneaking into his sleeping chamber at night. You'll want to pickpocket the key from Gules while he's sleeping, then take everything from the chest next to his bed. He'll store his armor in the chest at night.
To make robbing from Gules easier, go to the courtyard and wait until night. Everyone will go to bed except for one guard in the inner courtyard. Put on clothes that are quiet and sneak into the room upstairs. Before robbing from anyone, make sure to save your game. If you're caught, you'll have to pay a hefty fine.
This chest contains armor from all the guards -- focus on the highest value items to get Gules gear. Some of the gear is worth thousands of groschen. Focus on these items from the chest.
This set of gear is exponentially more valuable and provides more protection than anything else you'll find in the Trosky region or in the early game. You can also sell this gear for thousands of groschen -- and you'll even get a helmet with a face mask. Hold [D-Pad: Up] to lower the face shield and protect yourself even more from head strikes.