Hand-built frames with hand-finished upholstery. Solid oak and engineered hardwood frame with reinforced joinery. All wood is kiln-dried for added durability. High-gauge sinuous springs provide cushion support. Seat cushions have fiber-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 poly fiber filled. 60" sofa has 1 back cushion; all other sizes have 2. Reversible cushions (Astor Velvet excluded) with zip-off covers. Concealed support legs for a streamlined profile. Due to tapered arms, the front of the sofa is slightly wider than the back. Assembled in the USA.