Ryusou

(ウチナースガイ/沖繩姿), also known as (琉装りゅうそう, also written as ') and referred as ' in Okinawan, is the traditional dress of the Ryukyuan people. is a form of formal attire; it is customary to wear it on occasions such as wedding ceremony and the coming-of-age ceremony. The became popular during the Ryukyu Kingdom period. It was originally worn by the members of the royal family and by the nobles of Ryukyu Kingdom. The Ryukyu Kingdom was originally an independent nation which established trade relationship with many countries in Southeast Asia (Java, Malacca, and Palembang) and East Asia; they held their relationship with China as especially important. The development of the was influenced by both the  and the kimono, demonstrating a combination of Chinese and Japanese influences along with local originality.

Construction and design
The shows a combination of Chinese and Japanese influences as well as local, native originality. Robes which crossed in the front was worn by both the working and upper classes; however, they differed in length (from knee to ankle length). The working class would wear a knee-length robe while the upper classes would wear robes which were ankle-length.

During the Ryukyu Kingdom period, the colour, fabric, and design of the, alongside the style of headgear, was used to distinguish the social status and rank of the wearer.

Men's differ from women's  in terms of colour, design, and material. Men would secure their robes with a sash or girdle but women would hold theirs with a pin. The for women is based on the lit. 'red patterns' (紅型) style of dyework. could only be afforded by the people who had a rank and were wealthy. textiles were strictly supervised by the royal court. It was closely associated with the royal court and was traditionally reserved for the royalty of Ryukyu and aristocrats, and for warrior families. is brightly-coloured, commonly using red dye derived from cinnabar, the most important colour in, imported from Fujian, China. It is also suggested by Japanese scholar Yoshitaro Kamakura that the dyeing and painting techniques, styles, materials, motifs (e.g. Fujian-style Chinese bird and flower were introduced under the reign of King Shō Kei) of were also imported from Fujian.

A form of for women is intended to be shorter than the kimono: it is a two-piece garment attire which consists of  (胴衣; ドゥジン; cross-collar upper body garment) and  (裙; カカン; a pleated skirt). A woven or garment, called  (綿御衣; ワタンス), can also be worn loosely over the  and. Only men of royalty and from the warring class were allowed to wear and trousers as an undergarment.

can be made of high quality plain weave hemp fabric called, and bashōfu (芭蕉布), which is banana fibre textile. was the preferred textile for summer due to its airiness, for its smooth surface and because it does not stick to the skin in hot weather, making it suitable for the hot climate of Okinawa. According to the (Records on Chûzan),  was worn by both men and women during winter and summer, and its value equalled that of silk. was also used in the making of official garments, according the Ōshima hikki (大島筆記) written in the 18th century by Japanese Confucian Tobe Yoshihiro.

Differences to kimono
Due to the differences in climate and culture, Ryukyuan clothing differed to that worn on mainland Japan. Compared to the kimono, the has big sleeve openings, which allows for good air circulation to keep its wearer cool in tropical weather. The also uses a thin waistband instead of the wider  worn with the kimono. The is also very light, mobile and loosely-tailored compared to the kimono. The is generally shorter than the kimono.

Pre-14th century
Cotton was exported to the Ryukyuan Kingdom as early as 219 BC from China. The Ryukyuans appear to have started weaving around the time there was initial contact with China, most likely during the Han dynasty. In the, under the entry lit. 'weaving' (織), it states that "It is not clear when weaving began in our country. This was probably from the time that there was contact with Han [China]".

In the 5th century, oxen and swine were introduced to the islands which would also provided a source of clothing. According to a 5th-century records, the Ryukyu people only covered the upper parts of their bodies.

By the 7th to 8th centuries, people were already producing hand-woven fabric of cotton and other leaf fibers.

From the time of King Shunten's reign (1187–1237) to King Gihon (1249–1259), clothing which was characteristic of the Ryukyuan people had developed. The clothing was later recorded through illustrations; it was depicted in a 14th century book. During the reign of King Eiso, Buddhism was introduced to the Ryukyuan Kingdom from Japan. The robes of Buddhist priests may have served as the basis in design source for the development of the people's clothing. Married women also started to be tattooed during King Satto's reign with.

Tributary relationship with China and Japan
Tributary relationships with the Ming dynasty were established in 1372 by the three kingdoms of Sanzan. In 1372, the King of Chūzan entered into a tributary relationship with the Ming dynasty, and paid tribute for 500 years for trading privileges and diplomatic ties. In exchange for their tributes, the Ming dynasty gifted the Ryukyu Kingdom with Ming dynasty clothing of various designs (including round-collar robes and cross-collared robes), silk, and royal crowns (such as the, known in Chinese as the , a jewelled crown).

From the reign of Satto to the 16th century, Chinese influence on the Ryukyuan Kingdom was significant, while Japanese influence faded. According to a historical record known as :

"In Ryukyu, [the use of] garments began during the era of Tenson. The following generations gradually gained knowledge of weaving techniques, which developed admirably. During the 16th year of the Hong-wu era [1383], King Satto started to pursue [official] relations with China. Emperor Taizu of the Hong-wu era bestowed him with a golden seal and official garments. (Until the Qing dynasty, these were Ming-style garments.)"

In the 15th century, textile development in Ryukyu showed Indian, Indonesian, and Chinese influences. During the reign of King Shō Shin ((r. 1477 – 1527)), a decree was made in an effort to codify and ritualize the dress code as an expression of one's social status and ranks; colours were then used to distinguish the upper and lower ranks, thus defining the elite identity in Ryukyu Kingdom. This decree by King Shō Shin was a situation where Chinese practices were localized in the Ryukyu Kingdom. Ming-style clothing for officials and daily clothing were made for the Ryukyu kings and his officials. The regal insignia was a Ryukyuan innovation, which was loosely based on the Ming dynasty regulations of dress codification. Dragon robes with 5-clawed dragon motifs (called or ), which resembled the dragon robes of the Ming dynasty emperor, were used by the King of Ryukyu. Yellow clothing was restricted to the ruling family of Ryukyu as in China.

King Shō Shin was also the first to established a headwear system composed of hairpins and -style caps with varying colours according to the official ranks of its wearer. The use of may have been a custom which had been influenced by South Asian countries. The hairpins were also strictly regulated along with clothing during this period: Kings wore gold hairpins, which were decorated with a dragon, while a phoenix head decorated the hairpins of the queens; people of noble birth wore gold hairpins, silver hairpins were worn by feudal lords, brass hairpins by merchants and farmers; pewter or plain wood hairpins were worn by the people of the poorest status. Commoners could wear hairpins with tortoise shell in alternative hexagonal shapes of black and yellow during state occasions.

The Chinese never attempted to impose their culture on the Ryukyuans. The Ryukyu people used some Chinese designs and fabrics in making; however, they also cut it in a way which would suit local tastes and whose design was practical for daily life. This allowed the Ryukyu people to be culturally independent from China. Chinese silks bestowed to the Ryukyuan people were also transformed by the local artisans in Ryukyu to make ceremonial garments; these silk ceremonial garments differed from the hemp-based clothing that most commoners would make as their clothing.

The red (裙), a form of pleated underskirt, is believed to have been worn under a ceremonial attire called  (唐御衣装), also known as  (皮弁服) or  (御蟒緞), which was gifted by the Ming dynasty emperors. The was a winter ceremonial clothing worn by the Ryukyuan kings. The was slightly modified from the clothing gifted by the Ming dynasty, and included unique Ryukyuan features, such as fringes at the back of the garment, while maintaining the style of Ming dynasty court clothing. In the, it is noted that both Ryukyuan men and women wore an upper garment called (a type of court clothing). Male undergarments consisted of a white silk (胴衣), a cross-collared upper garment closed left over right, and white silk trousers. Only members of the royal family and members of upper-class warrior families were allowed to wear these undergarments. The emperor also wore and trousers as undergarments under his. The combination of and  was also worn as a ceremonial costume for women who came from warrior families. The wearing of and  continued to be worn in Ryukyu at least until the Meiji period.

17th century
After Satsuma subjugated the Ryuku islands in 1609, Satsuma controlled the islands and intentionally ceded to China's ritual authority over the Ryukyu Kingdom in order to win the economic profit from the tribute trade with China. The Ryukyu Kingdom continued to pay tribute to the Ming and Qing dynasties in China, but they were also forced to pay tribute to the as well. In order to hide the dual sovereignty, the Ryukyuans were forbidden from being assimilated into Japanese culture, and they were encouraged to continue wearing their traditional clothing and speak in the local language. When Ryukyuan envoys would visit Edo, they had to wear Chinese clothing. The reigns of Shō Tei to Shō Eki and Shō Kei were eras of strong Japanese influence, although the sentiment of the Ryukyu people were pro-Chinese.

Following the fall of the Ming dynasty, the Ryukyu continued to follow the Ming dynasty's court fashion and styled their own clothing with dragon emblems which were bestowed by the Qing dynasty.

From 1681, men of ranks started to wear, which was folded 7 or 9 times at the forehead and 11 or 12 at the back. It also became a social status marker in the court hierarchy, as the colours of the and the ways of folding it were strictly regulated by rigid rules.

Annexation of the Ryukyu Kingdom
Japanese influences increased from the year 1874, when the last King was taken prisoner in Tokyo and when Japan forbade the exchange of envoys with China. The Ryukyu Kingdom was eventually abolished and the islands were annexed without consent by the Meiji government. Between the years 1879 and 1895, many cultural and institutional characteristics of the Ryuku kingdom were preserved. However, following the arrival of Governor Shigeru Narahara, an aggressive form of cultural assimilation took place in the form of Japanization, leading to traditional Ryukyuan clothing being discouraged. The clothing of the Ryukyu people were influenced by the Japanese, and Japanese-style clothing was increasingly adopted. After the World War II, Ryukyuan bridal clothing did not show any native Ryukyuan influence, and was instead of Japanese origin.

Types of garment and headwear

 * – a cross-collared upper garment. For women, it was worn along with the . For men, it was used as ceremonial undergarment along with trousers; it was only used by the members of the royal family and the upper class warrior families. The emperor wore it under the.
 * – trousers.
 * – lit. 'flower hat', it is worn women by women when performing traditional Ryukyuan dance,.
 * – a pleated skirt with a long train; it was reserved for ladies of the upper class.
 * – a pleated underskirt for women; it was worn with . A red  was also worn by the king during his enthronement under the.
 * – a summer robe worn by women of the royal family.
 * – Royal crown, part of formal clothing for the Ryukyu king; it was bestowed by the Chinese Emperor. It was worn on important events, such as Sappo (enthronement of the King) and on the New Year's celebration.
 * – also known as or, a type ceremonial clothing bestowed by the Chinese emperor, it was worn by the King of Ryukyu. It was worn with the ;  was worn over the  and red.
 * – a lined or padded winter wear for both men and women; it was a form of formal wear in winter.
 * – a lined winter robe which could be made of ; it was worn on top of and . It was worn by the royal family.