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

Digital brochures

Product information

CAD Data - Revit files


Environmental Information

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ON® quality

[Translate to USA:] NeoCon2010



[Translate to USA:] 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



AGR Award Wilkhahn




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