September 7, 2023
ACX, the tenth office chair that Vitra has developed with Antonio Citterio, adapts to today’s hybrid and collaborative work methods. Conceived with a strong focus on sustainability, the construction, materials, production, logistics and maintenance of ACX are designed to achieve a long service life with the smallest possible carbon footprint.

Thirty years of collaboration between Vitra and Antonio Citterio have resulted in a close partnership and shared know-how as well as an understanding of current office needs. In keeping with the motto ‘less is more’, ACX responds to customer expectations with regard to price, sustainability, comfort and appearance. ‘The idea was to have an understated chair, with a reduced backrest and a warm array of upholstery colours, suited for both home offices and open-plan workspaces,’ declared Citterio.

The ACX mechanism automatically adjusts to a wide range of user weights: even very lightweight or heavier-than-average individuals can sit down and enjoy immediate comfort and optimum support without having to adjust anything except the seat height. The control elements for all functions are seamlessly integrated into the panel under the seat, contributing to the chair’s compact design and uncluttered appearance. The mechanism is available with or without forward tilt, while the other features – height, seat depth, backrest lock and two counterweight settings – are always included as standard.

The design of ACX contains a limited number of components, which simplifies service and maintenance. The parts are made of recycled materials whenever possible and can be easily separated and recycled again at the end of the product’s life. Depending on the chosen model, ACX is therefore up to 100% recyclable. As Citterio explained, ‘The use of up to 100% recyclable materials was the single most important factor in the design process.’

ACX is available in three versions: ACX Light, ACX Mesh and ACX Soft.


Developed by Vitra in Switzerland

Design: Antonio Citterio, 2023