Sofa with backrest frame in double-paneled fir-wood and  armrest and seat frame in multilayer poplar wood, padded  in polyurethane foam covered with acrylic fiber layers.  On the front part of the seat frame is fixed a 3mm steel sheet,  coated and shaped according to specific design, covered  with acrylic fiber layers. Seat chassis, inserted into the base,  in 40x30mm tubular steel, with epoxy powder coating, sprung  with coated rubber elastic straps; padding in polyurethane foam  covered in 100% polyether thermally bonded onto a polyamide  velveteen backing. Seat cushions in differentiated density polyurethane foam and  Visco-soft, covered with prewashed and sterilized goose down,  stitched into separate compartments and covering in needle  punched, resinated, non -woven polyester fiber, bonded onto  a polyamide velveteen backing. Backrest cushion in prewashed and sterilized goose down, stitched  into separate compartments, with polyurethane foam insert. Fabric upholstery fully removable by zippers and Velcro  fastenings. Fix leather upholstery for structure only. Tubular steel feet Ø30mm, joined by a bracket, with bronzed  epoxy powder coating or feet in solid wood veneered Stone Oak®,  screwed to a tubular steel bracket, rectangular section 25x15  mm, painted with matt black epoxy powder; both versions  with black PVC tips.