1. material: Made from highquality, waterproof polyester fabric. The lightfast and skinfriendly material is breathable and provides high sun exposure. It is ideal for use on the terrace or by the pool, but also suitable for indoor use. 2. Soft filling material: Highdensity sponge particles with good elasticity, good air permeability and do not collapse after prolonged sitting. Good support can reduce the pressure on the buttocks caused by prolonged sitting. 3. Scientific design: The tufting design helps stabilize the filling, effectively reducing or preventing clumping of the filling, thereby enhancing the softness and texture of the cushion, providing a more comfortable seating experience for the user, and extending the lifespan of the cushion, keeping it evenly soft, fluffy, and reliably supportive. 4. Stay in place: Fixed straps ensure that the outdoor cushion is securely attached to your patio furniture. You don't need to adjust the chair cushions often and can simply focus on enjoying your life. One of the most important features of a chair cushion is the ability to stay in place with frequent use.