There is only one mention of socks which can be described as native to Gor … meaning not socks worn to Gor by someone recently transported from Earth. And even then, socks are only mentioned once in that context.
"Cut his throat," said the leader of the brigands.
"No," said Boots. "In my wagon, in the right-hand corner of the tray in my trunk there is a knotted sock which contains coins and there are some coins, too, thrust in the toe of a slipper at the side of the trunk."
Players of Gor Book 20 Page 182
"Thus it was she came to us," said Samos, "save that she was clad in inexplicable, barbarous garments." He gestured to a guardsman, who fetched and spilled open a bundle of garments on the edge of the table. I saw that there were pants of some bluish, denim-type material, and a flannel, long-sleeved shirt. There was also a white, light shirt, short-sleeved. Had I not realized them to have been hers, I would have assumed them the clothing of an Earth male. They were male-imitation clothing.
The girl tried to step forward but the shafts of two spears, wielded by her flanking guardsmen, barred her way.
There was also a pair of shoes, plain, brown and low, with darker-brown laces. They were cut on a masculine line, but were too small for a man. I looked at her feet. They were small and feminine. Her breasts, too, and hips, suggested that she was a female, and a rather lovely one. Slave livery makes it difficult for a girl to conceal her sex.
There was also a pair of colored socks, dark blue. They were short.
Beasts of Gor Book 12 Page 22