Pillow Decor - Sunbrella Seville Seaside 20x20 Outdoor Pillow Outdoor Fabric by Sunbrella, 100% Acrylic Knife edge seams Same fabric, front and back Color matched zipper closure Machine wash covers in cold with natural soaps, air dry Brush off loose dirt. Spray on a cleaning solution of water and mild soap. Use a soft bristle brush to clean. Allow cleaning solution to soak into the fabric. Rinse thoroughly until all soap residue is removed. Air dry.