100% Foam Your cushion measures up to 25"W x 18"H x 4"Thick* The durable, shredded foam insert is luxuriously comfortable and built to last FadeSafe fabrics help to protect your cushion from water, stains, and the sun A locking zipper keeps closures secure and comes with a zipper pocket, providing a clean look One-year limited warranty *Dimensions may vary. Please allow 24-48 hours for your product to expand fully after unpacking; please note the foam insert will need to be stuffed into the cover upon arrival Durable fabric provides protection from harmful UV rays