The áo dài: Vietnam's national dress

The áo dài is Vietnam's best-known traditional garment: a long, fitted tunic with slits up both sides, worn over loose, flowing trousers. It's widely treated as the national dress, and you'll see it at Tết, weddings, graduations, formal events and, in some places, as a school or work uniform.

What does áo dài mean, and how do you say it?

• áo: shirt, top, garment
• dài: long

So it's literally "long shirt." A plain pronunciation hint is "ow zai" in a Northern accent and "ow yai" in a Southern accent. Áo has the rising tone, and dài has the falling tone. In English, people often say "ow die," which is understood.

What does an áo dài look like?

The classic women's áo dài has a few defining features:

• a high, stand-up collar
• a fitted bodice that follows the body closely
• side slits from the waist down, creating front and back panels
• panels that fall to the ankle or near it
• wide-legged trousers, often white or a matching color

The fit is the point. A traditional áo dài is usually tailored to the wearer, which is why many people have one made rather than buying off the rack. Fabrics range from plain silk to brocade, chiffon and printed cotton, and colors and embroidery carry their own associations depending on the occasion.

A short history

Vietnamese clothing changed over centuries, and earlier forms such as the áo tứ thân (four-panel dress) and áo ngũ thân (five-panel tunic) are often described as ancestors of the modern áo dài. The close-fitting version most people picture today is commonly traced to designers in Hanoi in the 1930s, notably the artist Cát Tường, known as Le Mur, who reworked the garment with Western tailoring ideas. The style kept evolving after that, with changes to collars, sleeves and cuts over the decades.

That history is why you'll see both old-fashioned and very modern áo dài side by side today: some with short sleeves or bold prints, others that look much like photos from a century ago.

Do men wear áo dài?

Yes. The men's áo dài is looser, usually shorter and less body-hugging, and is often worn with a khăn đóng, a round, wrapped headpiece. Men are most likely to wear it at weddings, Tết, traditional ceremonies and cultural performances. Grooms in particular often wear one for the engagement or wedding ceremony.

When do people wear the áo dài?

Common occasions include:

• Tết: the Lunar New Year, when family photos in áo dài are a tradition for many families
• Weddings: brides often wear a red or other bright áo dài for the traditional ceremony
• School: some high schools, especially in the South, have girls wear white áo dài as a uniform
• Work uniforms: some hotels, banks and airlines use áo dài-style uniforms
• Graduations and formal events: a polished, respectful choice
• Cultural celebrations abroad: Vietnamese communities around the world wear them for festivals and pageants

Everyday wear in modern cities is usually ordinary Western clothing. The áo dài is for occasions, not daily errands, for most people.

Can non-Vietnamese people wear an áo dài?

Generally, Vietnamese people are welcoming when visitors or friends wear an áo dài respectfully, for example to a Vietnamese wedding when invited to, or during Tết. Many tailors in Vietnam make them for tourists. A few tips:

• Wear it for an appropriate occasion rather than as a costume.
• Ask your host if you're unsure what's suitable for a specific event.
• Follow color cues: wearing the same color as the bride at a wedding, for example, may be best avoided.

How should an áo dài fit?

Because it's fitted, a good tailor takes many measurements: bust, waist, hips, arm length, and the length from shoulder to floor. The trousers are usually long enough to touch the floor in the shoes the wearer plans to wear, so bring those shoes to a fitting. Expect a custom áo dài to need at least one fitting.

Áo dài in modern style

Designers keep reinventing it, with cropped versions, áo dài-inspired dresses, and streetwear twists. For a look at how traditional clothing and today's trends meet, read Vietnamese fashion trends from áo dài to streetwear. For a broader introduction to customs, see Vietnamese culture: a friendly guide for beginners.

Related words

• áo dài cưới: wedding áo dài
• áo bà ba: a simple, loose blouse associated with the Mekong Delta in the South
• nón lá: the conical leaf hat often paired with áo dài in photos; see the nón lá

If you're planning to wear one, visit a tailor early: custom áo dài often take days or weeks around Tết, when everyone wants a new one.