It is important that bond-maids and thralls are aware of not only how appeared in Torvaldsland but also of the differences to be found across Gor.

"Among slaves, not free women, these things are sometimes spoken of along the lines as to whether or not a girl has been 'opened' for the uses of men. Other common terms, used generally of slaves, are 'white silk' and 'red silk', for girls who have not yet been opened, or have been opened, for the uses of men, respectively."
Dancer of Gor, p. 128

"Similarly, the expression, 'red-silk,' in Gorean, tends to be used as a category in slaving, and also, outside of the slaving context, as an expression in vulgar discourse, indicating that the woman is no longer a virgin, or, as the Goreans say, at least vulgarly of slaves, that His body has been opened by men. Its contrasting term is 'white-silk,' usually used of slaves who are still virgins, or equivalently, slaves whose bodies have not yet been opened by men. Needless to say, slaves seldom spend a great deal of time in the 'white-silk' category. It is common not to dally in initiating a slave into the realities of His condition."
Blood Brothers of Gor, page 472

"It must be understood, of course, that a slave, having no rights, does not have the right even to clothing. That a girl is wearing even a rag is usually a sign that she has pleased His master, and quite significantly, too. Often the garment of a slave girl does not come easily to His, in private, of course, even rags are often dispensed with. The slave is the property of the master, and, in the privacy of his quarters, she is done with, totally, as he pleases."
Savages of Gor, page 330

The status of a slave girl or kajira (kajirae) is often indicated by the color of her silks, sleeveless, usually short garments made of silk.

Depending on where she is living she may not actually wear silks, but the common slave garment of her geographic area. In Torvaldsland, bond-maids wear a kirtle.

"I saw four small milk bosk grazing on short grass. In the distance, above the acres, I could see mountains, snowcapped. A flock of verr, herded by a maid with a stick, turned bleating on the sloping hillside. She shaded her eyes. Se was blond; she was barefoot; she wore an ankle-length white kirtle of white wool, sleeveless, split to her belly; about her neck I could see a dark ring."
Marauders of Gor, page 81

In other places on Gor, slaves wear silks, camisks, ta-teeras etc. But it is important to know that red silk is a term describing a slave, not in fact, the color of the silk, or indeed, any clothes that she wears.

Bond-maids often serve in Halls naked.

In the Books there is little description of the clothing of a slave boy or kajirus (kajiri) of the south and thrall of the North. The Wagon People clad their kajiri in the kes, a short, sleeveless tunic of black leather. But in Torvaldsland, a thrall in the fields wore a white wool tunic.

"Men in the fields wore short tunics of white wool; some carried hoes; their hair was close cropped; about their throats had been hammered bands of black iron, with a welded ring attached."
Marauders of Gor, page 82

Red silk

Red silks denote a pleasure slave. A pleasure slave may generally be used by Any Who desire her/his usage but the slave may be reserved for the sole use of the Owner. A pleasure slave is well trained to please in all ways (sexual, service wise, dancing, and singing).

White silk

White silks indicate the virginal state of a slave.

"The dressing of slaves, incidentally, is an interesting and intricate pastime. The slave is almost never totally nude. Her body is marked almost always with some token of her condition, which is bond. This is usually a collar, but it may also be an anklet, sometimes belled, or a bracelet. Her brand, of course, fixed in her very flesh, deep and lovely, is always worn. There is no mistaking it. The iron has seen to that. Beyond theses things, much depends on the individual girl and on her particular master of the time. Individual taste is here supreme. To be sure, there are natural congruencies and proprieties which are generally observed."
Guardsmen of Gor, page 105

Brands

In Torvaldsland, slaves are branded with the Northern brand. In the South, slaves are branded with a kef, dina, or the personal mark of their Owner.

"The brand used by Forkbeard, found rather frequently in the north, consisted of a half circle, with at its right tip, adjoining it, a steep, diagonal line. The half circle is about an inch and a quarter in width, and the diagonal line about an inch and a quarter in height. The brand is, like many, symbolic. In the north, the bond-maid is sometimes referred to as a woman whose belly lies beneath the sword."

"I have wondered upon occasion why brands are used on Gorean slaves. Surely Goreans have at their disposal means for indelibly but painlessly marking the human body. My conjecture, confirmed to some extent by the speculations of the Older Tarl, who had taught me the craft of arms in Ko-ro-ba years ago, is that the brand is used primarily, oddly enough, because of its reputed psychological effect.

In theory, if not in practice, when the girl finds herself branded like an animal, finds her fair skin marked by the iron of a master, she cannot fail, somehow, in the deepest levels of her thought, to regard herself as something which is owned, as mere property, as something belonging to the Owner who has put the burning iron to her thigh.

Most simply the brand is supposed to convince the girl that she is truly owned; it is supposed to make her feel owned. When the iron is pulled away and she knows the pain and degradation and smells the odor of her burned flesh, she is supposed to tell herself, understanding its full and terrible import, I AM HIS.

Actually I suppose the effect of the brand depends greatly on the girl. In many girls I would suppose the brand has little effect besides contributing to their shame, their misery and humiliation. With other girls it might well increase their intractability, their hostility. On the other hand, I have known of several cases in which a proud, insolent woman, even one of great intelligence, who resisted a master to the very touch of the iron, once branded became instantly a passionate and obedient Pleasure Slave."
Outlaw of Gor, page 189

"The brand is to be distinguished from the collar, though both are a designation of slavery. The primary significance of the collar is that it identifies the master and his city. The collar of a given girl maybe be changed countless times, but the brand continues throughout to bespeak her status."
Outlaw of Gor, page 187

"The small, heavy lock on a girl's slave collar, incidentally, may be one of several varieties, but almost all are cylinder locks, either of the pin or disk variety. In a girl's collar lock there would be six pins or six disks, one each, it is said, for each letter of the Gorean word for female slave, kajira; the male slave, or kajirus, seldom has a locked collar; normally a band of iron is simply hammered about his neck; often he works in chains, usually with other male slaves."
Assassin of Gor, page 51

On Gor many types of collars are found, some made of steel that lock, others simple ropes tied around the slave's throat. The collar differs from the brand in that the brand shows the girl/boy to be slave, the collar shows who the slave belongs to. In Torvaldsland, most commonly, the collar is made of iron welded closed.

"About her neck, riveted, was a collar of black iron, with a welded ring, to which a chain might be attached."
Marauders of Gor, page 85

"Look up at me,' said the smith. The slender, blond girl, tears in her eyes, looked up at him. He opened the hinged collar of black iron, about a half inch in height. He put it about her throat. It also contained a welded ring, suitable for the attachment of a chain. 'Put your head beside the anvil,' he said. He took her hair and threw it forward, and thrust her neck against the left side of the anvil. Over the anvil lay the joining ends of the two pieces of the collar. The inside of the collar was separated by a quarter of an inch from her neck. I saw the fine hairs on the back of her neck. On one part of the collar are two, small, flat, thick rings. On the other is a single such ring. These rings, when the wings of the collar are joined, are aligned, those on one wing on top and bottom, that on the other in the center. They fit closely together, one on top of the other. The holes in each, about three-eighths of an inch in diameter, too, of course, are perfectly aligned. The smith, with his thumbs, forcibly, pushed a metal rivet through the three holes. The rivet fits snuggly. 'Do not move your head, Bond-maid,' said the smith. Then, with great blows of the iron hammer, he riveted the iron collar about her throat. A man then pulled her by the hair from the anvil and threw her to one side. She lay there weeping, a naked bond-maid, marked and collared."
Marauders of Gor, page 87

"There were some one hundred bond-maids for sale in the shed. They all wore the collars of the north, with the projecting iron ring."
Marauders of Gor, page 158

"From my pouch I drew forth a leather Kur collar, with its lock, and sewn in leather, its large, rounded ring. 'What is it?' she asked apprehensively, I took it behind her neck, and then, closing it about her throat, thrust the large, flattish bolt, snapping it, into the lock breech. The two edges of metal, bordered by the leather, fitted closely together. the collar is some three inches in height. the girl must keep her chin up. 'It is the collar of a Kur cow,' I told her."
Marauders of Gor, page 275