Formal Thai national costume

The formal Thai national costume, known in Thai as ชุดไทยพระราชนิยม (RTGS: chud thai phra ratcha niyom, literally 'Thai dress of royal endorsement'), includes several sets of clothing, or chud thai, designed for use as national costume. Although described and intended for use as national costume, they were shaped through a process of historical research and refinement under Queen Sirikit’s patronage, blending traditional Thai design with contemporary tailoring for formal occasions.

Source: Wikipedia — Formal Thai national costume (CC BY-SA 4.0)