For sofa pieces, choose your seat cushion style: Multi-Seat or Bench. Solid pine and engineered hardwood frame with reinforced joinery. Concealed support legs for a streamlined profile. High-gauge sinuous springs provide cushion support. Seat cushions have down alternative-wrapped, high-resiliency polyurethane foam cores. Seat firmness: Soft. On a scale from 1 to 5 (5 being firmest), it's a 2. Back cushions are filled with a down alternative and poly fiber blend. Loose, reversible cushions (excluding Astor Velvet and asymmetrical shapes). Cushion covers unzip to remove.