This 2-piece outdoor lounge chair cushion is made of 3-inch thick 45D high resilience memory sponge, which is soft to fit the back and does not collapse after sitting for a long time. The fabric is waterproof, moisture-proof and quick-drying. After ultraviolet treatment, it is not easy to fade after three years of outdoor use. There are fixed straps around, so it does not shift when turning over. The coat is detachable, machine washable, clean and worry-free. Suitable for swimming pools, terraces, gardens and other scenes. (Vacuum compressed delivery, open and let stand for 24-48 hours to restore fluffy)