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

FACTOTUM

Japan

FACTOTUM is a Japanese designer menswear brand founded in 2004 by Koji Udo. It combines tailored military and workwear styles with a strong focus on denim.

Facts
Founded2004
DesignerKoji Udo
First own store2006
LinesCollection, denim, FEMME, VALLIS
Websitefactotum.jp
Segment
Premium
Categories
MenswearWomenswearDenimAccessories
Sales channels
Own storesWholesale

What is Factotum?

FACTOTUM is a Tokyo fashion brand designed by Koji Udo. It blends high fashion with wearable real clothes, building collections on military and workwear with tailored elements and a deep attachment to denim. The name is linked to Charles Bukowski's novel Factotum.

History

Udo, born in Kumamoto in 1971, trained at Tokyo Mode Gakuen, worked at BEAMS and co-founded Lounge Lizard before launching Factotum with its autumn/winter 2004 collection. The brand opened its own store in 2006 and has added FACTOTUM FEMME womenswear in 2011 and VALLIS by FACTOTUM, an everyday wardrobe line, in 2015. Udo also served as creative director of Costume National menswear from 2017 to 2020.

Products and positioning

  • Collection line with seasonal themes from films, books and travel
  • Denim and FACTOTUM JEANS
  • Outerwear such as overcoats and leather riders' jackets
  • Accessories and womenswear

Distribution

Factotum runs its own stores, including a lab store in Ebisu, Tokyo, and is stocked by boutiques across Japan as well as international menswear retailers in Asia and the United States.

Why it matters

Factotum is a long running example of Tokyo designer menswear that pairs runway concepts with denim and workwear craft.

Frequently asked questions

Who founded Factotum?

Factotum was founded in 2004 by Japanese designer Koji Udo.

What is Factotum known for?

Factotum is known for tailored military and workwear inspired menswear with a strong focus on denim.

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