Chilean and fir plywood frame. Feet in fir, covered in the same shade of leather. Differentiated density polyurethane foam filling with acrylic fibre covering. Springing with woven elastic straps of covered rubber. Seatback and armrest with internal mechanism supported by a heavy felt, in order to modify the height positioning and the incline. Padding in washed and sterilized goose down with differentiated density polyurethane foam inserts. Leather upholstery with sharp edge stitching.