Size: 36x18x3in,18x18x3in. Patio furniture cushions includes two 18″ x 18″ x 3″ single bottom cushions for side chairs and one 36″ x 18″ x 3″ double bottom cushion for loveseats. Premium 100% Polyester Fabric: Patio cushion are made from high-density 300GSM polyester, soft, durable, and breathable.