Sompot Chong Kben (Khmer: សំពត់ចងក្បិន, sâmpót châng kbĕn [sɑmput cɑːŋ kɓən])^[1] is a Cambodian unisex, lower body, wraparound cloth. It was adopted in the neighboring countries of Laos, and Thailand,^[2] where it is known as pha hang (ຜ້າຫາງ [pʰȁː hǎːŋ]) and chong kraben (โจงกระเบน [tɕōːŋ krābēːn]). It was the preferred choice of clothing for women of upper and middle classes for daily wear. Unlike the typical sompot, it is more of a pant than a skirt. The chong kraben is described by art historian Eksuda Singhalampong as "a garment that resembles loose breeches. The wearer wraps a rectangular piece of cloth around his [or her] waist, the edge of cloth is then passed between the legs and tucked in at the wearer's lower back. Many 19th-century European accounts often called them knee breeches, riding breeches or knickerbockers."^{[3]: Note 10}

Sompot Chong Kben (សំពត់ចងក្បិន)^[4] is a combination of three Khmer words; សំពត់ (/sɑmpʊət/,sampot),^[5] a long, rectangular cloth worn around the lower body; ចង (/cɑɑŋ/, chang)^[6] ,to wrap around; and ក្បិន (/kbən/, kben),^[7] referring to the lower body cloth wrapped around the waist and then pulled back between the legs and tucked in at the back. The name of this cloth, kben or chong kben, literally means "to wrap or to wear the kben" in Khmer. Chong kraben (โจงกระเบน) is used among Thai people and derived from these Khmer words.

The history of sompot chong kben dates back to ancient Cambodia, where deities were often portrayed wearing such clothing. References to most Khmer elders tell a legend related to this garment. It said that a long time ago, the Khmer people wore sompot chong kben, following the Indian traditional wear of the dhoti^[8] which was imported to Funan by King Kaundinya I.^[9] Due to Indian influence, Suryavarman II built temples such as Angkor Wat which were dedicated to Hinduism. During the Khmer empire, most of the people were likely to read and see the Reamker at the Angkor Wat carving on the first floor as well. Prayers and blessings were also given to a deva known as Hanuman, the guard of Prince Rama in Ramayana as well as in the Khmer adaptation, Reamker. To show Hanuman's power, Indians wore the dhoti, and it is still worn for special occasions in mainland Southeast Asia.^[10] In Ramayana mythology, Hanuman is a symbol of bravery, cleverness, and power, so people wearing the sompot chong kben drop a tail at the back like Hanuman's monkey tail. This practice led many people to believe that all Indians were guards of Hanuman. The influence of the dhoti was strongly incorporated into Khmer culture from ancient times to today.^[11][12]

In the middle of the 13th and 14th centuries, people from the Thai Sukhothai Kingdom and Lao Lan Xang kingdom had adopted the wearing of sompot chong kben from Khmer.^[13] They considered it superior for enjoying special occasions, and useful for royalty or monarchy in their local royal palace, leading to the Thai people and Lao people using sompot chong kben in a similar way.^[14][12]

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  Photograph of Prince Chulalongkorn (Rama V) and his two younger brother wearing chong kraben in 1851
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  Photograph of a 19th century Siamese boatman, photographed by John Thomson
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  Photograph of Queen Saovabha Phongsri, principal consort to King Chulalongkorn
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  6th century Khmer depiction of Balarama wearing Sompot Chong Kben from Phnom Da temple, Angkor Borei, Takeo, Cambodia. Now exhibits in National Museum of Cambodia.
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  Khmer woman wearing Sompot Chong Kben
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  A Khmer traditional dancer in Sompot Chong Kben
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  Khmer royal ladies wearing Sompot Chong Kben and Sbai in the mid-1800s.
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  Mannequins wearing Sompot Chong Kben at the Royal Palace of Cambodia

• Dhoti
• Sampot
• Sampot chang samluy
• Khmer traditional clothing