571 Back-Wing is an armchair designed by Patricia Urquiola for the Cassina brand. The sensoriality of the skin is combined with the essence of wood for a seat with a strong impact design.The seating collection is made of solid natural ash wood, oak stained, black stained, amaranth tinted, night blue stained and canaletto walnut. The large sections of the legs and the crosspieces highlight its solid form. The leather upholstery rests gently and folds over the structure giving the chair great comfort. The back-wing cladding is elegantly finished, without visible seams, and with a leather cord that delimits and defines precisely the perimeter profile of the chair.