The Mod. 305 chair is based on human anatomy. At the back, the tension is stronger since it is the part that supports the weight of the torso. The back feet then carry most of the person's weight, hence their thickening. Their shape avoids the deformation caused by swinging. The chair gives an impression of stability and solidity while relying on simple shapes and materials. The structure is made of folded and lacquered sheet metal. The seat and the back are made of plywood.
Literature:
P. Sulzer, Jean Prouvé: Oeuvre Complète/Complete Works, Volume 2: 1933-1944, Basel 2005, pp. 34-35, 211-212.
Location: Paris