Frame in steel with elastic straps. Feet in steel with polyester-epoxy powder coating, with front swivel castors in zinc alloy and synthetic rubber or solid wood in natural oak or aniline-dyed wengé, finished with open-pore acrylic paint. Padding: variable-density foamed polyurethane and polyester wadding covered with polyester velveteen. Headrest cushion in goose down covered with cotton cloth. External totally removable cover in fabric or non-removable in leather.