Corner-blocked frame Reversible seat and back cushions Feather-fiber blend cushion Arm bolster pillows included Pillows with feather-fiber blend Polyester upholstery Non-skid legs Platform foundation system resists sagging 3x better than spring system after 20,000 testing cycles by providing more even support Smooth platform foundation maintains tight, wrinkle-free look without dips or sags that can occur over time with sinuous spring foundations