9 October 2026International edition
Vol. I · No.
9 October 2026
AI in Fashion
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Premium and contemporary

DAY Birger et Mikkelsen

Denmark

DAY Birger et Mikkelsen is a Copenhagen-based fashion brand founded in 1997 by Keld Mikkelsen and Malene Birger. It makes womenswear collections rooted in Scandinavian simplicity and a modern bohemian spirit.

Facts
Founded1997
FoundersKeld Mikkelsen and Malene Birger
HeadquartersCopenhagen, Denmark
Sister label2NDDAY
Websiteday.dk
Segment
Mid-market
Categories
WomenswearMenswearHome
Sales channels
Own storesWholesaleE-commerce

What is DAY Birger et Mikkelsen?

DAY Birger et Mikkelsen is a Danish brand founded in 1997 by Keld Mikkelsen and Malene Birger. Its stated mission is to empower a woman's everyday with crafted collections that are accessible and personal. Its roots lie in Scandinavian simplicity and a modern bohemian spirit.

History

Malene Birger left in 2001 to start her own label, By Malene Birger, while Keld Mikkelsen stayed on as creative director. A 2011 trade article reported that he later regained full ownership after an earlier stake held by an Irish company was bought back in July 2010. That article also noted the addition of the 2nd Day and 2nd Day Jeans lines.

Products and positioning

Today the online shop is organised by knitwear, coats and jackets, tops, shirts and blouses, dresses, blazers, trousers, denim, skirts, loungewear, swimwear and accessories. It sells a second label, 2NDDAY. In the past the brand also made menswear and household goods such as fabrics and indoor scents.

Distribution

As of 2011 the brand ran about 40 boutiques, mostly in Denmark, and was sold by about 800 retailers worldwide.

Frequently asked questions

Who founded DAY Birger et Mikkelsen?

The brand was founded in 1997 by Keld Mikkelsen and Malene Birger. Birger left in 2001 to start By Malene Birger.

Where is DAY Birger et Mikkelsen from?

It is a Danish brand based in Copenhagen.

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