Undiz

Undiz is a French lingerie and underwear chain owned by Etam Groupe, the Paris-area retailer controlled by the Milchior family. Its operating company, Undiz SAS, was registered on October 27, 2004, and is based at the group's offices on rue Castères in Clichy, just outside Paris. The brand sells colorful, low-priced bras, briefs, pajamas and swimwear aimed squarely at teenagers and women in their twenties, and it is the second-largest lingerie name inside a group that already owns the biggest one in France.

Etam's second lingerie brand

To understand Undiz it helps to start with its parent. Etam traces its roots to 1916, when Max Lindemann opened a hosiery shop in Germany under the name Strumpfhaus Etam. The French side of the business came through Martin Milchior, who set up Setamil in Belgium in 1925. The two merged in 1958 and took the Etam name in 1963. The group floated on the Paris stock exchange in 1997 and went private again in 2017, and the Milchior and Tarica families now hold a little over 80 percent of it.

By the 2000s Etam had a problem common to big lingerie chains. Its core brand served a broad adult customer, and the teenage shopper was drifting toward fast-fashion stores that sold cheap underwear by the till. Undiz was the answer: a separate name, separate shops and a separate tone, so that Etam itself did not have to chase a sixteen-year-old's taste. The group describes the split plainly. Etam is the mainstream lingerie and ready-to-wear label, Maison Cent Vingt-Trois (formerly 1-2-3) serves an older customer, and Undiz sells fun, colorful clothing and lingerie for young people.

The legal entity dates to 2004. Some summaries, including the one this encyclopedia used to carry, give 2007 as the founding year. No source available for this entry confirms 2007, so the registration date is the firmest fact on record.

How big Undiz is

The numbers are modest by the standards of global fast fashion and large by the standards of French lingerie. French company filings put Undiz SAS revenue at about 183 million euros, with a net profit of about 3.9 million euros, in its most recent published accounts. Laurent Milchior, one of the group's co-managers, is listed as president of the company.

Market share figures cited for the group put Etam Groupe at about 16 percent of the French lingerie market, the largest single share, split between Etam Lingerie at about 11 percent and Undiz at about 5 percent. That five percent is the interesting part. It means a youth brand with small baskets and low prices accounts for roughly a third of the lingerie business of France's biggest lingerie seller.

For comparison, the whole group reported revenue of about 892 million euros in 2024 and was present in more than 55 countries, though most of that reach belongs to Etam rather than Undiz.

Color first, fit second

Etam Groupe sums up the Undiz offer as playful, colorful clothing and lingerie for the young, and that short line explains most of the business. The emphasis is on prints, seasonal colorways and low ticket prices, with nightwear and loungewear sold alongside underwear, so that a shopper can walk out with a pajama set or a multipack of briefs as easily as a bra. The brand's own site blocked automated access while this entry was written, so its current range could not be itemized here.

What Undiz does not try to be is a fit-led lingerie house. Its market position sits below its sister label rather than beside it, and that is a deliberate choice: it keeps the two brands out of each other's way. Styles such as the bralette suit that model, because a soft, wireless top in a fashion color sells on looks and needs no fitting room. A teenager can start at Undiz and graduate to Etam without the group losing her.

Inside a family group

Undiz shares sourcing, logistics and head-office functions with the rest of Etam Groupe, which reports producing around 80 million garments a year across its brands. In 2019 the group added a fourth lingerie name, the digital-first label Ysé, which covers smaller-bust and post-surgery customers that neither Etam nor Undiz targets. The result is a portfolio that slices the French market by age and need rather than by price alone.

Its closest domestic rival in spirit is Rougegorge, another French chain that sells colorful, affordable lingerie to a young customer. Abroad, the competition is less a single brand than the underwear tables at Primark, H&M and Zara-group stores.

The company that runs Undiz is small on paper: French registry data lists it in a headcount band of about 41 direct employees, a reminder that much of the work behind the shops sits in the parent group rather than in the brand's own entity.

Last updated October 7, 2026