Reduction to the essentials: the classic S 411 tubular steel chair. The outstanding properties of this armchair are elegance, timelessness and exceptional seating comfort. Added is a lightness that only a cantilever model can have. While the first tubular steel chairs from the 1920s were rarely upholstered, the 1935 Thonet catalogue presented an entire series of voluminously upholstered armchairs and sofas.