ON office chair with Trimension®

In today’s busy office environment we all spend long periods of time in hunched positions at our desks. Bizarrely, despite being bad for our bodies we choose to adopt a lazy posture. What the human body actually requires is frequent and a varied range of movements. Wilkhahn understands this key principal of ergonomics which is why we have developed Trimension® for the ergonomic ON chair. This unique tested feature is a patented technology for three dimensional, synchro-adjusted dynamic seating.

Trimension® doesn’t just encourage forwards, backwards and sideways movements, but the pelvis to rotate too - which is so important for the spine’s stability. Two separately moveable swing plates, just like two thighs, lie at the core of the technology. Minimal shifts in weight are already translated into movement. The position of the pivotal points and the way they work are exactly like knee and hip joints. As a result, the body’s equilibrium remains in perfect balance – no matter what posture it adopts or the way it moves. This new dimension in seating quickly becomes something that’s -taken for granted. Backache is effectively prevented and the metabolism, muscles and joints are stimulated.


170 range - Design: wiege

More information about ON office chair

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Product information

CAD Data - Revit files


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Configurator based on global assortment; selected model might not be available in your country; please contact us to check availability.

Design Awards and Environmental Certificates

[Translate to Australia:] NeoCon2010




[Translate to Australia:] Design Award



Logo FX-Award Task chair ON 2010 EN





Wilkhahn Good Design Award ON 2010



Wilkhahn ON IF Design Award 2010





Wilkhahn ON Bürostuhl ecodesign Award



[Translate to Australia:] AGR Award Wilkhahn


AFRDI Green Tick Certifikate
AFRDI Blue Tick Certifikate

ON office chair can be combined with the following other products: