cs Olefin fabric,durable, suitable for indoor and outdoor use.Pop colors great comfy for all weather.Excellent patio chair cushions. Supportive and high resilient foam ,28D 50H,which easy to rebound and retain the shape as seat cushion .Back cushion features a button-pulled fiberfill. This set is the perfect replacement for much-wrought iron and rattan original chair sets. Overstuffed construction for excellent comfort and longevity ,back pillow with round corners on top - easy to clean and have elegant looks .While the seat cushion with two sets of string ties help keep cushion safely in place. 2Sets includes 2seats & 2backrests . Seat Dimensions : 22-inch width by 22-inch depth by height 4-inch ;Back Dimensions : 22-inch width by 22-inch depth