Corner-blocked frame Loose non-reversible button tufted seat cushion Loose back cushions High-quality foam cushions wrapped in poly fiber Accent and bolster pillow included Pillows with soft polyfill Polyester/viscose blend upholstery Tapered accent 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