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AC 5 Work

Antonio Citterio, 2017

The elegant office swivel chair AC 5 Work is equipped with a range of sophisticated functions that not only guarantee healthy seating comfort, but are also discreetly out of sight. This clean look enhances the graceful lines of AC 5 Work, whose distinctive design and uncompromising functionality make it a perfect seating option for well-appointed offices.

The sophisticated structure of the AC 5 Work backrest with three different zones – lumbar zone, sink-in zone and shoulder zone – provides optimum support for the neck and prevents muscle tension. Further ergonomic features of AC 5 Work include the FlowMotion mechanism with synchronised forward tilt and seat depth adjustment, as well as the innovative FreeFloat armrests.

Product family

AC 5 Group

Jointly developed by Antonio Citterio and Vitra, the AC 5 Group is a family of task chairs designed to furnish modern, disparate office landscapes in a consistent aesthetic. Their trim shapes, sophisticated aluminium components and classic Hopsak cover fabric lend these chairs a dignified elegance. At the same time, the various models of the AC 5 Group cover a wide performance spectrum. These high-quality, versatile chairs are especially well suited for specific applications: from the ergonomically optimised task chair AC 5 Work and the reductive functionality of AC 5 Studio to the conference chair AC 5 Meet. Contemporary office environments provide diverse settings in which employees can work alone or in groups as needed – whether at ergonomic single workstations or agile team hubs, in closed meeting rooms or informal interaction spaces. With its distinctive angled backrest, the AC 5 design becomes a unifying visual element in open-plan offices. It can either be used in a uniform version for an understated effect or with the wide range of Hopsak colours to create striking accents or form thematic groups.

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This product was designed by

Antonio Citterio

The architect and designer Antonio Citterio, who lives and works in Milan, has collaborated with Vitra since 1988. Together they have produced a series of office chairs and various office systems, as well as products for the Vitra Home Collection. The Citterio Collection is constantly being expanded.