Backrest structure in curved 18-mm poplar plywood. Seat structure in 25-mm fir plywood fastened with 6-cm elastic belts. Upper part armrest gumming in 70% high capacity, internal and external padding at 30% grf, all encased in a 100-gr. acrylic sheet. Body stuffing in 25% high capacity density expanded polyurethane foam, all encased in a 150-gr. acrylic sheet. Seat stuffed in polyurethane foam with double density: 30% high capacity density on the front and 35% elastic-density on the rear, all covered with a 2-cm sheet in memory foam encased in a 150-gr. acrylic sheet. Base in powder-coated metal anchored to the load-bearing structure of the frame. Swivel mechanism with return system.