Armor in *Kingdom Come: Deliverance 2* operates differently than in many other RPGs. Forget the usual set bonuses; complete sets aren't always optimal here. Instead, focus on individual pieces that best suit your needs. That said, some armor sets stand out, offering significant advantages depending on your playstyle.
Armor sets in *Kingdom Come: Deliverance 2* function uniquely. You won't receive a bonus for equipping multiple pieces from the same set. These sets are often defined by their acquisition location or the enemy they're looted from, with exceptions for Twitch drops and pre-order bonuses.

Acquired from Cumans in the Kuttenberg region (during the "Bellatores" side quest, for example), this set excels in combat. Its high noise and conspicuousness make it unsuitable for stealth, but its strong slash and blunt resistance make it ideal for unavoidable fights. Expect (depending on quality) 149 stab, 181 slash, and 65 blunt resistance.
Available from merchants in Kuttenberg, this armor offers solid all-around defense. While not cheap, its high defense stats make it a worthwhile investment. However, its weight should be considered when managing multiple armor sets. Expect (depending on quality) 392 stab, 286 slash, and 100 blunt resistance.

This pre-order bonus armor, obtained through the "Lion's Crest" quest, is exceptionally strong early in the game. Its high defense stats are invaluable before significant skill and perk progression. The full set provides (depending on quality) 704 stab, 567 slash, and 239 blunt resistance.
A Twitch drop reward, the Cutpurse Armor is excellent for stealth. Its low detection values make it ideal for sneaking. However, its availability depends on past Twitch promotions. Expect (depending on quality) 24 stab, 53 slash, and 54 blunt resistance.
Ultimately, the "best" armor is a combination of pieces tailored to your build and playstyle. While complete sets look good in cutscenes, their visual appeal doesn't translate to combat effectiveness. Prioritize stats over complete sets unless a specific set offers unique advantages. Remember that skillful combat can often mitigate the need for exceptionally high armor values.