Armchair. Black or graphite painted steel legs. Stiff polyurethane seat with self-extinguishing polyurethane foam upholstery. Fixed internal nylon cover. Removable external cover in fabric or leather. The fabric cover can be exclusively dry cleaned. Backrest in beech plywood, covered with natural or black painted oak or in natural painted Canaletto walnut. Backrest and seat cushion with removable upholstery, made of polyurethane and self-shaping polyurethane foam respectively. Fixed internal nylon cover. Removable external cover in fabric or leather.