DS-343 /21 chair - Lifestyle
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DS-343 /21 chair

Designed by: de Sede Design-Team & Bart Van der Heyden
for De Sede
in Dining Chairs - indoor

A designer armchair that moves with the person seated The DS-343 wing chair not only marks a simple design object’s arrival in the living space; it also creates a completely new culture of sitting. DS-343 is based on a patented seat study developed over the last two decades by seat expert and physical therapist Bart Van der Heyden.

DS-343 is an armchair that moves with the movements of the person seated. Its mantra is to permit and even encourage changes in posture. The chair is not constructed with a classic seating surface that stops at the backrest; instead, it extends up to the height of the pelvis. If one leans backwards, the backrest element, from pelvic height on up, automatically moves along with the user – without any mechanical effort, and solely as a result of the change in the posture of the person seated. The changed backrest position automatically leads to improved posture. This is how the DS-343 offers extraordinarily active and pleasant seating comfort in the long term.
And the design is equal to this intelligent seating concept: the silhouette of the wing chair is defined by the skillful folding of the leather. Dimensionally stable NECK leather in thicknesses of up to 5 mm is processed with such finesse that it cascades continuously over the edges – for an incomparable leather experience.

- leather upholstered armchair with recline function
- frame coated in silk-grey, black-grey, high-gloss chrome-plated or different color on request
- shifts in weight adapt the seat and backrest inclination
- armchair rotatable 360 degrees

DS-343 /21
28" L x 31-37" D x 32-40" H
seat height 20"
armrest height 26"


To learn more or purchase this item:

or call for more information: 312.337.3444



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