What Hang Gai is
Hanoi's Old Quarter is often described as 36 streets. Each one once sold a single trade, and the street names still act as a rough map. Hang means goods or merchandise. Gai is hemp, so the name points to the hemp and rope sellers who once worked here.
Today the street is known for silk and clothing. Most Old Quarter streets now sell a mix of goods, but Hang Gai has kept a clear identity. You'll find fabric shops, tailors, clothing boutiques and a few art galleries.
What to look at and buy
The main reason to come is tailoring. Many shops will make a custom áo dài, the traditional Vietnamese dress, within a day or two. Bring a garment you like as a model, and allow time for a second fitting.
Not every shop sells local craft. Some souvenir stores carry imported goods. If you care about where things are made, ask directly and compare a few shops before you buy. Look up as you walk, too. Some upper-floor cafes on the street give partial views over the rooftops and toward the lake.
When to go
Morning and late afternoon are the most comfortable times to walk. The midday heat in summer is hard going on foot. Early mornings also bring food carts around Hang Gai and nearby Hang Bo, which makes for an easy breakfast stop.
Evenings are lively once the shop lights come on. Traffic on the narrow sidewalks can be heavy, so keep an eye on scooters.
Combining it with nearby places
Hang Gai fits neatly into an Old Quarter loop. Ngoc Son Temple and The Huc Bridge are about 0.2 km away on Hoan Kiem Lake. Bach Ma Temple, Hang Ma Street with its paper offerings, and the Heritage House at 87 Ma May are each around 0.6 km away.
A good half-day starts at the lake. From there, walk Hang Gai, then head north into the older guild streets.