This 6-inch thick outdoor seat cushion features 210gsm Olefin fabric, weather-resistant, fade-proof and water-repellent for all outdoor conditions. Filled with 28D high-density foam, it delivers long-lasting resilience without sagging. The unique smiley-shaped layered backrest fits your lumbar curve for cozy support. A U-shaped zipper at the seat’s rear bottom allows easy removal and washing of the cover. Its rounded-front, square-back design offers flexible placement, and two classic color options make it ideal for patios, balconies and gardens.