De Hallen is an old tram depot converted into spaces where there are designers, design school, textile repair center, etc, also you can find art, restaurants, a library, a cinema.

In the De Hallen there is the House of Denim ( which brings together knowledge, innovation and professionals from the denim world. 

Denim City was created in 2015 and the infrastructure includes the Denim City store, House of Denim foundation, Jean School International Course, House of denim Workshops, House of Denim laundry innovation center, Denim City Archive and Showroom & Offices.

The principal element is the Denim school, the first and only school in the world dedicated to denim development. There is a 3-year course, fully accredited by Dutch government.