Oxford Garden Adirondack Chair Cushion, Dupione Walnut 21-inch w by 17-inch d 2-1/2-inch thick thermal bonded polyester core Custom fit for oxford garden items Commercial grade, built for superiority and strength Quick drying, mold and mildew resistant, fire retardant cushion for Oxford Garden adirondack chair Manufactured with Sunbrella 100% solution dyed acrylic 2-1/2-inch-thick thermal bonded polyester core Custom fit for Oxford Garden adirondack chair 21 inches wide by 17 inches deep