Tunic

The simplest form of dressing a slave, the work tunics were generally brown, made of rep cloth.

"I wore a brief, one-piece brown work tunic. It was all I wore, with the exception of the collar. We wore such tunics when engaged as work slaves. The tunics of work slaves are usually brown or gray."
Slave Girl of Gor, page 265

It was a sleeveless tunic pullover of brown rep cloth. It was generously notched on both sides at the hem, which guarantees an additional baring of its occupants flanks."
Magicians of Gor, page 21