37 in. x 18 in. Alatriste Ivory Squared Corners Outdoor Lounge Chair Cushion, 1-Piece YY6XRZD1S4 - The Home Depot
Pillow Perfect Delray Navy Rounded Corners Chair Cushion 40.5-in x 21-in Blue Patio Chair Cushion in the Patio Furniture Cushions department at Lowes.com
Amazon.com: Pillow Perfect Stripe Indoor/Outdoor Chair Seat Cushion with Ties, Tufted, Weather, and Fade Resistant, 18.5" x 19", Red/Brown Westport, 2 Count : Home & Kitchen