Who watches the watchmen? There are many guards in Bree, but who knows what little secrets do they share and what kind of mischief do they plot. Acromir might be considered the villain, as he is a burglar, but instead of burgling he oversees the night town and takes care of Breelanders' safety. When you see a shadow moving between rooftops next time, maybe there's no need to be scared. But one can never know ;)
Acromir said about his outfit: "When making this costume, I tried to make it semi-realistic for a burglar. In actual night-time, there is never pure black. People who wear black clothing (the stereotypical ninja) show up really well, because there is always some light (stars, distant lights, etc) and so shadows are never that dark. Grey, however, shows up a lot at night-time and blends in with most building or natural materials. Most of this stuff is from lvl 65-70 questing in Dunland. I realized that some of the stuff looked cool, and started trying everything on before I picked a reward. I had to sacrifice some gear with better stats to get these, but it was definitely worth it."
Chest: Scout's Weathered Leather Jacket, grey dye (Dunland quest)
Shoulders: Reinforced Leather Dunlending Shoulder-Guards, grey dye (Dunland quest)
Hands: Dunland Marcher's Leather Gauntlets, grey dye (Dunland quest)
Feet: Padded Leather Boots, black dye (Outfitter in Bree)
Back: Plain Cloak, black dye (Outfitter in Bree)