DS-343 is an armchair that moves when the person seated moves – because the object is constructed not with a classic seating surface that stops at the backrest, but with one that extends 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. And the design is equal to this revolutionary 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 skillfully processed by hand to ensure that it continuously cascades over the edges.