C.C.'s outfits are both plentiful and varied. She is seen wearing a wide assortment of different clothes, often dependent on the situation or time period. She often wears Lelouch's own clothes, including his Zero costume should Lelouch ever require a decoy.
However, in the first season, C.C. primarily wears the outfit she initially appears in—a white straitjacket used to restrain her during her time as a test subject for the Britannian Empire prior to the series beginning. These suits contain many means of restraint, including various straps and zippers and a high collar capable of gagging the wearer. When not set to fully bind the wearer, the suits have rather long sleeves that flare outwards closer to the cuffs. A number of these bondage suits are seen in the Geass research laboratories. The reason for C.C.'s common use of the suit is because she isn't free, instead being a slave to the world. She is seen wearing it through most of the first season and the end of the second season.
C.C.'s predominant outfit in the second season is her Black Knights uniform which is wildly different from those of the other Black Knights. Rather than the usual Black Knights jacket, C.C. wears a sleeveless black uniform with a high collar, gold trim, and a silver Black Knights symbol on the chest. The lower end of the uniform splits off into four long pieces that nearly extend to the floor. A long, adorned red sash is also worn around the waist. C.C. also wears long black gloves with gold trim kept on with red bands on the upper arms as well as long white and gold high-heeled boots. Underneath her uniform, C.C. wears a cropped sleeveless white turtle-neck and white boyshorts. She is often seen wearing only these undergarments.
