Stefan Diez trained first as a cabinetmaker, beginning an apprenticeship in 1991, before studying industrial design at the Staatliche Akademie der Bildenden Künste in Stuttgart, graduating in 1996. He founded his studio in 2003, working across furniture, tableware, industrial and exhibition design and combining analogue craft with digital tools. He was professor of industrial design at HfG Karlsruhe from 2007 to 2014 and has taught at the Universität für Angewandte Kunst in Vienna since 2018. For Viccarbe he designed Funda, introduced in 2020 and built on principles of circularity and durability: each piece pairs a metal frame with a removable upholstered cover, so the two can be separated and recycled. The family includes a chair, stool and lounge chair, the Funda Bold lounge chair, and outdoor versions of the chair, stool and lounge.
