Jeju Haenyeo › Sea Work and Tools

From Cotton Mulsojungi to Rubber Wetsuits:
How the Haenyeo Suit Changed

Line up photographs of haenyeo, Jeju's free-diving sea women, in order of era, and the clothing is the first thing the eye catches: a single layer of white cotton giving way to black rubber. Only the garment changed, and yet the hours of the work, the income it brought, and even the ailments of the body changed with it.

The short answer

The haenyeo's working dress changed from the cotton mulsojungi and muljeoksam to the rubber wetsuit in the late twentieth century. In the cotton era, cold limited a session to thirty minutes or an hour, with long stretches spent warming up at the bulteok fire. After the wetsuit, divers could work three or four hours even in winter, and incomes rose. In exchange, the longer hours brought more decompression sickness and headaches, and lead weights joined the kit to overcome the suit's buoyancy.

Contrast illustration of an old-time haenyeo in white cotton mulsojungi on the left and a present-day haenyeo in a black rubber wetsuit on the right, seated on the same rock
The clothes changed, and the hours changed with them.

What kind of garment was the mulsojungi?

The mulsojungi was the haenyeo's old working garment, sewn from cotton. A single-layer suit with a strap over one shoulder and buttons or ties down the side, it was cut to adjust to the body and to be easy to change in and out of. Over it went a short jacket called the muljeoksam, and on the head a cloth hood called the kkaburi. The cotton was white or dyed dark, and most divers sewed their own.

The garment's problem was cold. One layer of cotton protects no one in seawater. So a diver worked thirty minutes to an hour, came out to warm herself at the bulteok, the stone windbreak with its fire, and went back in. The working day was short, and winter muljil was brutal.

The mulsojungi eraAfter the wetsuit
DressCotton mulsojungi, muljeoksam, kkaburiBlack rubber wetsuit with attached hood
One sessionThirty minutes to an hour, cut short by coldThree, four hours or more, winter included
RestFrequent breaks at the bulteok fireModern changing rooms; the bulteok falls out of use
BuoyancyNo extra gear neededLead weights required on a waist belt
IncomeSmall, capped by days and hours in the waterLarger, as the harvest grew
HealthCold and hypothermiaMore decompression sickness, headaches, joint pain

When did the wetsuit arrive?

The rubber suit reached Jeju in the late twentieth century, in most accounts the early 1970s, and spread fast. The usual telling has it arriving from Japan. At first the price kept it from everyone, but the gap in working hours and income was so large that within a few years nearly every diver had changed over.

The wetsuit changed muljil in two ways. First, time: with the cold solved, a diver could stay in the water for hours at a stretch. Second, season: winter diving became possible, and the sea was open the year round. Incomes rose, and with them the haenyeo's power to carry a household.

The suit changed more than the hours

Able to stay longer, the divers stayed longer. Five or six hours of dives and ascents, repeated hundreds of times a day, brought a rise in decompression sickness, chronic headaches, and joint pain. The saying that a haenyeo lives on headache pills dates from this era. The cold of the cotton years had forced the divers to rest; the rubber suit made rest optional, and optional rest is the kind that gets skipped.

The garment reshaped the whole day. In the cotton era, a haenyeo dived briefly on the tide and returned to her fields; after the wetsuit, the hours in the water stretched until muljil filled most of the day. The old rhythm of sea work and field work in balance changed along with the clothes.

Jeju subsidizes the purchase of wetsuits for working haenyeo. The programs change from year to year, so the provincial and city notices are the authoritative source.

Even when staying longer is possible

The wetsuit gave the haenyeo the power to stay longer, and the longer staying wore their bodies down, so the divers set their hours by rule rather than by endurance. Sumbi stands on the same footing: not the power to lock a screen, but the rule of keeping a time you chose. Sumbi supports the documentation and preservation of Jeju haenyeo culture.

Dive the length of one breath →

What remains of the old dress

Traces of the mulsojungi

The mulsojungi no longer enters the water, but it is recreated at haenyeo festivals and displayed at the Haenyeo Museum. Because its structure evolved to fit the diver's body and work so exactly, it is studied in its own right as folk dress.

The kkaburi and the water cloth

The kkaburi head cloth gave way to the wetsuit's attached hood. In the cotton era, divers wrapped head and ears in cloth against the cold and the pressure of the water, and that old instinct survives in the fit of the rubber hood today.

The place for changing

The bulteok was where divers changed and warmed themselves. Modern changing rooms arrived with the wetsuit, and most bulteok fell silent, surviving now as stone rings along the coast, including several beside the walking trail that starts at the Haenyeo Museum.

One line the sea taught us. When staying longer became possible, what the haenyeo learned was not how to stay longer but how to decide, all over again, when to come out. A phone works the same way: precisely because it can be watched without end, the time has to be set.

Frequently asked questions

Why do haenyeo wear black wetsuits?
The rubber suits were black from the moment they arrived, and two explanations circulate: black is less conspicuous underwater and therefore safer, and black absorbs warmth well. By now it is simply the custom, and nearly everyone wears black.
How often is a wetsuit replaced?
Usually every year or two, depending on use. Worn or torn rubber stops insulating, and Jeju subsidizes part of the replacement cost.
Did divers really work winters in the mulsojungi?
They did. A diver could not stay in long, so she cycled between short dives and the bulteok fire, and the number of winter working days was simply small.
What goes under the wetsuit?
A thin base layer or diving undergarment. The suit insulates only when it fits tight to the body, so nothing thick goes underneath.
Can visitors try on haenyeo dress?
Some diving experience programs put participants in rubber wetsuits for a shallow-water session. The mulsojungi appears as recreated costume at haenyeo festivals, and the real garments are in the museum.

This article is a cultural introduction based on published sources; figures reflect the survey dates listed in the references.