Chelsea Home Furniture Lehigh Sofa, Patriot Blue The frames are constructed of solid kiln dried hardwood and engineered wood products. Reinforced with blocks to secure a long lasting frame. Microfiber blend Cushions are made from hi-density foam cores with Dacron polyester wrap to provide longer life. All cushions are made with zippers. The sinuous spring system is made with a reinforced 16 gauge border wire to maintain uniform and balanced seating. Includes Toss Pillows as shown