The ninja were a covert group of warriors in feudal Japan who specialized in espionage, sabotage, and assassination. They did not have a specific uniform, but rather wore clothing that allowed them to blend in with their surroundings and remain undetected.

One common piece of clothing associated with the ninja is the black gi, which is a type of martial arts uniform that is often associated with ninja characters in popular culture. However, this is a modern invention and not historically accurate.

In reality, ninja would have worn clothing that allowed them to move stealthily and remain hidden. This could include dark, loose-fitting clothing that provided camouflage and allowed for a full range of movement. Ninja would also wear tabi, which are split-toe socks that allowed them to move silently and provided better traction on various surfaces.

Overall, the clothing worn by ninja would have varied depending on the situation and the mission at hand. The clothing was chosen based on its practicality and functionality rather than for any particular style or aesthetic.