The chairs most prominent characteristic is the Y-shaped structure of its backrest. It allows the backrest to be adjusted in height and positioned according to the size of the user. The stretched elastic cover automatically adapts to the individual shape of the users back. In addition, a depth-adjustable lumbar bolster guarantees precise support. The seat and the armrests can also be individually adjusted in several ways. The synchronous mechanism ensures active sitting and adjusts to the users weight with a quick and easy control.