A Thief Top is an Uncommon Shirt in Unturned.
The Ninja Top is a highly rare piece of clothing that can be found in Militia Locations. It is the only black clothing meant for camouflage purposes in Unturned. It can be combined with Police Armor and Alice Pack to create a character disguised in all black. This can come in handy during night time against people in PvP servers who do not have a form of Military NVG. It's only effective during the night, as black clashes with the brightness during day time.