As the kimono has another name gofuku (呉服= "clothes of Wu (呉)"), the earliest kimonos were heavily influenced by traditional Han Chinese clothing, known today as hanfu (kanfuku in Japanese), through Japanese embassies to China which resulted in extensive Chinese culture adoptions by Japan, as early as the 5th century. It was during the 8th century, however, when Chinese fashions came into style among the Japanese, and the overlapping collar became particularly a women's fashion. During Japan's Heian period (794–1192), the kimono became increaslingly stylized, though one still wore a half-apron, called a mo, over it. During the Muromachi period (1338-1573), the Kosode, a single kimono formerly considered underwear, began to be worn without the hakama pants over it, and thus began to be held closed by an obi "belt". During the Edo period (1603-1867), the sleeves began to grow in length, especially among unmarried women, and the Obi became wider, with various styles of tying coming into fashion. Since then, the basic shape of both the men's and women's kimono has remained essentially unchanged. Kimonos made with exceptional skill from fine materials have been regarded as great works of art.
The formal Kimono was replaced by the more convenient Western clothes and Yukata as everyday wear. After an edict by Emperor Meiji, police, railroad men and teachers moved to Western clothes. The Western clothes became the army and school uniform for boys. After the 1923 Great Kantou earthquake, Kimono wearers often became victims of robbery. The Tokyo Women's & Children's Wear Manufacturers' Association (東京婦人子供服組合) promoted the western clothes. Between 1920 and 1930 the Sailor outfit replaced the undivided hakama in school uniform for girls. The 1932 fire at Shirokiya's Nihombashi store is said to have been the catalyst for the decline in kimonos as everyday wear. The national uniform, Kokumin-fuku (国民服), a type of western clothes was mandated for males in 1940. Today people often wear western clothes, and wear the easier to wear, cool and comfortable Yukata in special time.
Nagajuban (長襦袢, or simply juban) are kimono-shaped robes worn by both men and women beneath the main outer garment. Since silk kimono are delicate and difficult to clean, the nagajuban helps to keep the outer kimono clean by preventing contact with the wearer's skin. Only the collar edge of the nagajuban shows from beneath the outer kimono. Many nagajuban have removable collars, to allow them to be changed to match the outer garment, and to be easily washed without washing the entire garment. While the most formal type of nagajuban are white, they are often as beautifully ornate and patterned as the outer kimono. Since men's kimono are usually fairly subdued in pattern and color, the nagajuban allows for discreetly wearing very striking designs and colors.
Hadajuban (肌襦袢) are thin garments similar to undershirts. They are worn under the nagajuban.
Obi (帯) An obi is a sash worn with kimono by both men and women.
Obi-ita (帯板) is a thin, fabric-covered board placed under the obi by women to keep its shape. It is also called mae-ita.
Obiage(帯揚げ) A sash that is tied around the top edge of the obi which covers the obimakura "pillow"and keeps the upper part of the obi musabi "knot" in place
Obimakura (帯枕) a small pillow used by women that is tied under the obi at the back which gives the obi musabi "knot" it's volume.
Obijime (帯締め) is a thin cord worn around the obi. It is necessary to hold the popular taiko musubi in place.
Tabi (足袋) are ankle-high, divided-toe socks usually worn with zouri or geta. They also come in a boot form.