Dimensions: 21.5 in W x 45.5 in H x 2.25 in T (seat cushion is 20 in W x 17 in L and seat back is 21.5 in W x 28.5 in L) Eco-friendly PFAS-Free C0 Treatment Filled with partially recycled polyester fiber fill that helps retain shape over time Fits most standard Adirondack or rocking chairs 100% polyester outdoor fabric treated with enhanced UV protection to resist fading Elastic strap on back to keep your cushion firmly in place 1-Year limited fabric warranty Cleans easily with soap and water 1+ Years of UV-resistance 100% polyester fiber fill to provide long lasting comfort