Triple Anti-slip Design:Our patio chair cushion features a triple non-slip design to provide you with a secure and stable sitting and lying experience. Its spring strap and fabric straps hold the cushion securely to the chair, enhancing its fit with the chair. Its bottom is carefully set with anti-slip points, which can increase the friction with the chair and effectively prevent the cushion from sliding.Premium Polyester: The cover material of our high back patio chair cushion is waterproof polyester, which not only keeps the Adirondack cushion dry and clean, but also is easy to clean with water or a mild detergent. Meanwhile, it also has excellent UV resistance, making the cushion not easy to fade although it is exposed to the outdoor sunlight. Soft and Comfortable: The adirondack rocking chair cushion, as thick as 4.7 inches, is not easy to dent, making you comfortable and soft when sitting on. Its filling material of cotton has excellent resilience. Even under prolonged use, the rocking chair pad remains fluffy and soft, providing support for your body and greatly relieving the pressure. Additionally, our cushion features grid-like stitching that prevents the filling from shifting and piling up during use, ensuring long-lasting comfort. Outdoor Chair Cushion Size: Our outdoor chair cushion has an all-in-one design that includes a bottom cushion and a back cushion. Measuring 15.74 x 17.71 x 4.72 inches for the bottom cushion and 25.98 x 17.71 x 4.72 inches for the back cushion, this cushion is suitable for all types of rocking chairs, high back chairs and Adirondack chairs.Warm Tip and 24-hour After-sales Service: Due to the vacuum-compressed package, our Adirondack chair cushion may flatten after you receive it and return to its soft and fluffy state within 24 hours. If you have any problems when using our product, please feel free to contact us and the 24-hour after-sales service is available for you.