Sbai, sabai , or pha biang is shawl-like garment, or breastcloth worn in mainland Southeast Asia. The term "sabai" is used for a woman's silk breast wrapper in Cambodia, central Thailand, southern Thailand, Isan, and Laos while in coastal Sumatra it described as a shoulder cloth..." Sabais can also be worn by men in Lao weddings or when attending religious ceremonies. The type of sabai typically worn by Lao men often has checkered patterns. Sabai also well known as a long piece of silk, about a foot wide, draped diagonally over the chest covering one shoulder with one end dropping behind the back."
The sabai is Cambodia's national costume tie with its ancient's sampot and chang kben.