This outdoor midback chair cushion is designed for both comfort and durability, featuring a polysoft polyester fabric that is treated to be water-repellent and UV-resistant. Measuring approximately 18 inches wide by 16.5 inches deep with a 3.5-inch thickness, the cushion is filled with a firm polyester fiber intended to maintain its shape over time. While the fabric is engineered to bead off light moisture and resist fading from sun exposure, it is recommended to store the cushion indoors during heavy rain or when not in use to best preserve the material. The ruby red Leala pattern offers a vibrant touch to patio furniture, and the attached ties ensure the pad stays securely in place during use.