OLEFIN FABRIC - Sundale Outdoor cushion covers adopt water-resistant, non-fading olefin fabric. This high-quality durable fabric is more durable than other fabrics, with good waterproof performance and light fastness for up to 1500 hours. High-density Olefin Fabric with a bumpy texture brings a refreshing & breathable summer HIGH RESILIENCE FOAM - Comes with high-quality pure padded foam and an Olefin cover for easy assembly. The middle contains a sponge without any powder added and uses a unique multi-layer filling with flat cotton on the sides to maintain shape and be long-lasting. It provides excellent support and long service life and is not easily deformed. A non-woven wrapping layer outside adds shagginess SUPERIOR DETAIL DESIGN - The patio deep seat chair cushion has an elegant & firm piped edge design and invisible zipper.