Stress-resistant polyurethane foam with differentiated densities and polyester fibre on wood frame. Feet in beech, screwed to the structure, with the exception of the back feet of PAPY attached tothe frame. The backs of the SLIM (code 0O4) and BUDDY (code 0O2) sofas are in injected flame-retardant foam over an internal steel frame. The feet are varnished. The seat cushions, non-reversible, are in polyurethane foam with differentiated densities and polyester fibre. The back cushions are in goose down. The BIG MAMA collection covers are removable with the exception of the PAPY armchairs.Leather covers are not removable.