A Jean Prouve for Vitra 'Standard Chair', chairs take the most stress on their back legs, where they bear the weight of the user's upper body.' the engineer, architect and designer Jean Prouve incorporated this simple insight in his design for the standard chair: while steel tubing suffices for the front legs, since they are subject to less stress, the back legs are made of voluminous hollow sections that transfer the primary weight to the floor, height 80 cm, width 42 cm, depth 46 cm