Sbai

[1]: 153 There are related mythologies in Khmer culture concerning the history of sbai, which was likely introduced during the Funan era from India alongside chong kben in the first century AD.

[13][14] In the Angkorian period, although it was common for men and women to be topless; however, clothes for the upper body were worn: the bas-reliefs of Bayon, Preah Khan, and other Angkorian temples depict women wearing a shawl-like sbai while religious male figures are adorned with stylized sbai.

Sabai can also be a long piece of silk, about a foot wide, that is draped diagonally over the chest covering one shoulder with one end dropping behind the back.

The Mon people of Myanmar and Thailand today were the descendants of various Indianized polities, notably Dvaravati.

Artifacts from Dvaravati sites in what is now Thailand depicted a group of ladies wearing what is similar to sabai.

Artifacts found in ethnic Mon Dvaravati sites depict group of ladies wearing what is similar to sabai.

The sabai is also known as a long piece of silk, about a foot wide, draped diagonally around the chest by covering one shoulder which its end drops behind the back.

The stucco relief discovered at the Khu Bua archaeological site , which dates back to the 650-700 C.E. period of the Dvaravati culture, depicts four female figures wearing shawl-like garments.
Lao women wearing colorful sabai or phaa biang in traditional dance
Mon women wearing traditional clothes in Mon State , Myanmar
Thai women wearing sabai at Jim Thompson House