Simplex 3D

A swivel chair with three-dimensional movement – universal and multifunctional.
Design: greutmann-bolzern
Simplex 3D is a universal, multifunctional swivel chair combining simple and intuitive operation with three-dimensional movement. Similar to a sitting ball, the user is constantly moving and adopting different positions. With its ease of use, Simplex 3D is intended mainly for temporary use – in today’s increasingly mobile and dynamic working environment. Simplex 3D also brings a more homely touch to the workplace.

New Poseidon fabric


Our range of fabrics now includes an option made from 100% recycled polyester. The yarn for the fabric is made using plastic waste from the sea, which is collected and recycled by approved partners of the SEAQUAL INITIATIVE.

Help us to clean the oceans, and configure your swivel chair with a Poseidon fabric cover!

Product family

Simplex 3D swivel chair
Simplex 3D stool
Simplex 3D high stool with footrest
Simplex 3D swivel chair high, with foot ring



Carmen and Urs Greutmann-Bolzern established the greutmann bolzern designstudio in Zurich in 1984. Today, it is one of Switzerland's most renowned studios.
The duo go way back, to their time studying together at the Academy of Art and Design in Zurich. Carmen Greutmann-Bolzern graduated as an interior designer and Urs Greutmann as an industrial designer. The office setting forms the focal point of the design studio, which the pair founded immediately after graduating. Since 2003, they have jointly held the Chair in Product Design at the Academy of Fine Arts in Munich.


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