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Viasit Impulse (Custom)

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- Synchro Mechanism With 120° Recline



- 4 Position Lock And Free Flow Function



- Instant Response Tension Control Wheel



- Integrated Forward Tilt



- Adjustable Lumbar Support



- Seat Height Adjustment



- Seat Depth Adjustment



- 2d Arms (Height/width) With Soft Touch Pads



- 5 Year 24/7 Warranty



- Certified For 24 Hour Use




Your custom Viasit chair is made to order for you and cannot be cancelled once manufacturing has commenced. These products are non returnable unless damaged or faulty. 


Please note: Certain fabric and component selections may incur longer lead times. Once your order has been confirmed with the factory, we'll contact you with an exact chair build and delivery timeframe.


Extensive fabric collections are available but may also incur longer lead times. Free fabric swatches are available on request. Please contact us if you are unsure of colours, designs, or if you want more fabric options.


We are working hard to make sure that our products are delivered to you as quickly as possible, however due to the effects of Covid-19 and Brexit, there may be delays in receiving your order. Please allow some extra time for delivery of your order during busier periods.



Designer Ralf Umland working in collaboration with Viasit’s in house R&D team developed the concept for Impulse with the emphasis based on a modular system with strong lines, practical functionality and integrated ergonomic adjustment. The end result is a perfectly thought-out sitting solution consisting of high-quality, ergonomic chairs for workplace, conference and waiting areas, combining design excellence and ergonomics in an award-winning package.


Impulse delivers class leading comfort and ergonomics thanks to the integrated instantly adjustable synchronous automatic mechanism.


The Impulse has a net-weave mesh back for breathability and can be enhanced with a variety of options including: dynamic floating tilt mechanics, adjustable lumbar support, Ultra Spring seat for point-elastic support, Vialift gas spring cushioning, a full width or adjustable headrest and multiple armrest options. The choice is yours! Build you chair from the wheels up!


Founded in 1980, Viasit stands as a leading innovator of workplace furnishings and have won many awards for their creations. Viasit’s design focus is always firmly on people and their need for comfort, ergonomics and aesthetics.


At Viasit, good design is certainly not for show. It is a question of achieving the optimal blend of form, material, and function and ensuring products are intuitive to use, provide long service, and deliver high quality.



Seat height adjustment - 400-520mm

width 470 mm

Seat depth adjustment - 400-460mm


Height - 540mm


Height adjustment - 100mm

Width adjustment - 35mm

Depth adjustment - 60mm

Angle adjustment - 30°




diameter ø 680 mm


5 years