Uchiki (also known as "uchigi") is a kind of kimono that is worn by women as part of Heian-period costumes, such as the twelve-layered ceremonial kimono and five-layer robe, although it may also be worn by itself.
袿（うちき、うちぎ）は十二単、五衣、等、女性の平安装束を構成する着物の一つであるが、単独で着用する場合もある。