Universal design fits most patio deep-seating chairs With zipper and non-weave fabric. easy to take out the cover for cleaning. Durable SDP fabric will last season-after-season UV-proof fabric resists fading and sun damage 10cm thickness foam fill provides long-lasting comfort and support This seat & back deep seating cushions feature 100% Solution dyed polyester fabric. Seat cushion features a foam wrapped around a polyester fiber batting for firmness and support. The back cushion features all polyester fiber for that softer feel that you expect from your deep seating cushions. Features Dimensions : Seat Cushion: 24" D x 23" W x 6" H Back Cushion: 19.5" H x 23" W x 5" T Universal design fits most patio deep-seating chairs With zipper and non-weave fabric. easy to take out the cover for cleaning. Durable SDP fabric will last season-after-season UV-proof fabric resists fading and sun damage 10cm thickness foam fill provides long-lasting comfort and support