Polyester Blend DURABLE PATIO CUSHION FOAM: Foam measures 74"L x 23”W x 3”Thick 1-YEAR LIMITED WARRANTY: We provide a One-Year Limited Warranty on our Montlake cushions COMFORT AND SUPPORT: 3-layered foam designed for comfort and support, outer layers of open-cell foam enclose a high density core that is resilient but conforms to your shape PROTECTIVE LINER: Spunbond sewn casing provides a clean finish for the interior stuffing, enclosing the raw edges and easing installation RENEW YOUR SEATING : With the Classic Accessories foam, you can add support to your patio seating without giving up on your favorite cushion cover style ALSO AVAILABLE: Cushion foams are not only compatible with standard sized cushion slip covers, but are easy to pair with Montlake and Ravenna cushion slip covers Durable fabric provides protection from harmful UV rays