Spruce up your old patio furniture or simply add comfort to a new set with the Atrium 17 x 17 Outdoor Furniture Seat Pad. Each cushion is filled with polyester fiber filling for softness and durability. All cushions are covered in polyester. We recommend spot-cleaning with soap and water when necessary. Please measure your furniture carefully before ordering, and because of their hand-crafted construction, please allow for a 0.25-inch variance.