Outdoor Seat and Back Cushion Set: The replacement chair cushion set comes with one 25.2x25.2x54.7~5.7 inch outdoor seat cushion and one 25.98x19.68 inch outdoor back cushion. Perfect patio cushion suite for outdoor chair, loveseat or sofa. Outdoor Cushions with Weather Resistant Olefin Fabric: This patio chair cushion set cover made of outdoor Olefin fabric with zipper design for removable purpose. The Olefin fabric is water resistant treated and UV treated for preventing wetting from water drops and color fading from sunniness. Passed 1000 hours of sunniness test. Solid color Olefin but with beautiful texture. Note: please keep your cushions indoor when raining or not using them for long period for extended lifetime. High Resilient Outdoor Seat Cushion: The patio chair seat custion is stuffed with high quality high resilient foam for comforatble sitting while keeping it not deformed for long lasting. lined in the Olefin cover there is a polyester bag for better protecting the foam. Soft Thick Back Cushion: The patio chair back cushion is over stuffed with artificial cotton, which is soft, but thick enough for back spine supporting, also being well breathable. The back cushion is vacuum compressed for minimizing the packing size, please gently pad and knead it to fluff it up. Firm Sewn with Reinforced Edge: The chair cushions are not only carefully Sewn, but also reinforced with a soft neat edge, which not only keeps the shpe of the cushion, but also adding apealing.