Jean-Marie Massaud conceived the Archibald Sofa System as a direct evolution of his Archibald armchair, extending its vocabulary of organic form and precision stitching into a fully modular seating architecture. The proportions are generous without excess, and the padding invites repose without compromising the silhouette's discipline. Taut upholstered surfaces meet rounded volumes in a studied contrast that defines the collection's visual identity. The signature stitching, carried over from the original armchair, functions as both structural detail and graphic gesture, giving the piece a graphic clarity rare in upholstered furniture at this scale. Feet are set back behind the frame, lending the sofa a quality of quiet suspension above the floor. The load-bearing structure combines birch plywood with a steel frame. Backrests and armrests are padded in polyurethane foam layered with polyester wadding, calibrated for lasting resilience. The system is available in Pelle Frau leather or removable fabric, with ash wood or zamak feet. Structure: birch plywood and steel frame Padding: polyurethane foam with polyester wadding Upholstery: Pelle Frau leather or removable fabric Feet: ash wood or zamak, set back from the frame perimeter Configuration: fully modular seating system