The Arden Selections Foam Seat Pad set is made with polyurethane foam fill and long-lasting outdoor polyester fabric with PFAS-Free C0 treatment. Creating an ultra-comfortable outdoor seat cushion that is also eco-friendly and Skin-safe for your family. This outdoor seat pad measures 17 in W x 16 in L x 1.5 in T. The 100% printed polyester outdoor fabric resists fading, so your patio cushion looks vibrant for longer. Skin-safe C0 water protection helps your seat pad cushion withstand continued outdoor use, while cleaning easily with just soap and water for low-maintenance upkeep. Two sets of ties make sure your outdoor seat cushion stays firmly in place. Inside this outdoor chair cushion is 100% durable polyurethane foam to help it retain shape and provide long-lasting comfort during outdoor use. Although this patio cushion is both water and UV-resistant, we recommend bringing it indoors when it rains or when not in use to preserve its lifespan and keep it looking beautiful.