Kiln-dried solid and engineered wood frame. Oak base in a Black or Natural Oak finish. Seat cushion has down and fiber-wrapped, high-resiliency polyurethane foam core. Seat firmness: On a scale from 1 to 5 (5 being firmest), it's a 3. Lumbar pillow included. This contract grade item is manufactured to meet the demands of commercial use in addition to residential. See more. Made in China.