Polyester ARDEN Deep Seat cushion set includes a seat bottom and cushion back designed to fit most standard patio deep seat furniture (chair, soft, or couch). Dimensions Pillow: 23 in W x 19 in L x 5.5 in T and Seat: 22 in W x 24 in H x 5 in T Durable outdoor polyester fabric is UV treated to help cushions resist fading for longer lasting vibrant color. Weather-proof, rain-proof, and Fade-Resistant. Each cushion is treated with C0 Water and Stain treatment. Our fill is the right mix of firm and comfort. Seat bottom with 100% Superior Polyester fill for a premium cushion that helps retain shape over time. Back cushion filled with recycled polyfiber blowfill. This cushion ships compressed. In order for it to bounce back to original shape, shake cushion vigorously. Fits most standard outdoor deep seat chairs, conversation sets, or couches