Integral structure and feet in solid American walnut. Seat cushion with inset steel springs and high resilience polyurethane Bultex foam 36 kg/m³ – 3.2 kPa clad in Bultex foam and 200 g/m² polyester quilting. Back cushion with integral lumbar cushion filled with new duck feathers (90 % feathers/10 % down) H 88 mm with compartmented liner and core in polyurethane foam 32 kg/m³ – 2.8 kPa. The structure of the high-backed armchair is identical to that of the low-backed version. The only difference is the height of the back cushion. MAKING-UP Baguette stitching on the seat cushion ; regular stitching on the back cushion. Removable covers (NB except in the case of seats in microfibres or leather).