Frame Kiln dried hardwood. Once assembled, frames are wrapped in 2lb foam exceeding industry standards. Made with responsibly-sourced wood. Cushions High-density polyurethane foam core containing no flame retardants or harmful chemicals encapsulated with multi layer fiber sheeting for lofted seating comfort. All seating is a one fabric sided, non-reversible construction. Slight softening and flattening of the cushion will occur as a result of normal use and aging but are inherent characteristics. Legs Plinth decorative base Suspension Seat-sinuous spring back with poly webbing. Back-Poly webbing.