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PUREis3 is designed for sitting and made for movement.


Unlike any other chair, PUREis3 has been developed entirely with active people in mind.


This approach has required a complete re-invention of the "office chair".


PUREis3 adjusts to the user, their body and movements without requiring them to make time-consuming adjustments.


Complicated and heavy mechanisms are no longer required.


PUREis3 not only allows a wide range of movement but also ensures that the user stays comfortable, active and sufficiently supported at all times.




The core component – the "Smart Spring" – is made using a special polyamide/glass fibre compound.


It enables the PURE to dynamically adjust to the user's body, weight and movement.

The Smart Spring not only defines the visual appearance of the PURE; it also supports the whole chair and allows for impressive movement radii – including in directions that are impossible on other chairs.


With no further need for adjustment, this enables true three-dimensional sitting.


Long periods of static sitting can be hugely detrimental to your health. Research, however, – studies conducted by the Fraunhofer IAO and the University of Tübingen in particular – suggests that just two hours of moderate physical activity per day are enough to offset the negative effects of a sedentary lifestyle. For many years, Interstuhl has collaborated with the Fraunhofer IAO to turn scientific findings into practical solutions.


Three factors with health benefits

Activation - PURE ensures that sitting is never static. Frequent posture changes keep muscles active, and legs, hips and spine are mobilised too.


Freedom - PURE guarantees that the user is never forced into an uncomfortable posture. This prevents blockages in the blood flow and encourages circulation. At the same time, PURE does not hinder the user when they have the urge to move.


Comfort - PURE guarantees constant and firm support in all movements. And because the ergonomics of a chair can only work properly if it is correctly adjusted, PUREis3 does this for you – completely automatically.


It is not the chair that promotes health but the movement it provides. PURE does everything to ensure that the user is relieved of strain and stays active.

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