Outdoor chair cushions measures 17" x 16" x 2", suitable for most patio chair. Our outdoor cushions comes in compression packaging for easy portability. Please measure the seat dimensions of your furniture before ordering. Made of 300GSM high-density polyester fabric with TPU coating on the back, UV-resistant, waterproof, and will not fade even under direct sunlight for more than 500 hours. And easy to maintain and clean. It is recommended to keep it indoors when not in use to extend the life of your outdoor patio furniture cushions. There are 2 straps on each side of the patio chair cushions that secure the cushions to the back of the chair and prevent them from moving. Using whole piece of high-density memory foam, which is soft and highly resilient, providing you with comfortable cushioning and support, not easy to deform after sitting for a long time. Promotes good posture for you, and effectively relieves the pressure on the body. Our patio cushions are available in a variety of colors and can easily match any decor style, making them perfect for gardens, patios, balconies or other outdoor scenes, as well as sofas, lounge chairs, rocking chairs, etc. Patio chair cushions made of 300GSM high-density polyester fabric with TPU coating on the back, which is UV-resistant, waterproof and colorfast,easy to maintain and clean. 2 straps on each side of the patio chair cushions that secure the cushions to the back of the chair and prevent them from moving.Suitable for most patio chair. Using whole piece of high-density memory foam, which is soft and highly resilient, providing you with comfortable cushioning and support, not easy to deform after sitting for a long time. Promotes good posture for you, and effectively relieves the pressure on the body.