This is a traditional Vietnamese dress called the Ao Dai, which is also known as the Cheongsam.
It has a long and flowing skirt with a high collar and a wide neckline.
The dress is typically made of silk or cotton and features intricate embroidery and patterns.
The Ao Dai is a symbol of Vietnamese culture and history, representing the country's rich heritage and artistic traditions.
It is often worn during important events such as weddings, festivals, and cultural performances.
The dress is not only beautiful but also functional, providing comfort and protection from the sun and wind.
It is a popular choice for women who want to showcase their elegance and grace while also embracing their cultural identity.