Quiet and calm, Cast Slate's neutral charcoal resembles the cool, damp rocks that line a hidden pond in the middle of a forest. It's a tone that is deep and sophisticated, yet has a warmth that radiates out and upward, allowing you to pair it with all colors easily. Our 44 x 21.5 in. outdoor dining chair cushion is covered in long-lasting and specially engineered Sunbrella acrylic fabric with built-in UV protection to help retain its vivid color and resist the elements all summer long. Inside our outdoor patio cushion we use our patented 100% everLuxe polyester fiber fill to help retain shape and provide long-lasting comfort during outdoor use. Fibers within the cushion are oriented in a vertical position, which provides structure, support, and spring. This outdoor dining chair cushion was engineered to fit the Oak Cliff and Niles Park furniture collections but is also suitable for most other dining chair frames with square seats. It comes with ties that ensure the cushion stays securely in place no matter the weather. Our outdoor dining chair cushion also comes with a 5-year limited fabric warranty and a 1-year limited warranty against defects in workmanship. Dine comfortably and in style on the Home Decorators Collection Cast Slate High Back Dining Chair Cushion.