Pillow Perfect Outdoor Hinged Seat & Back Chair Cushion - 37W x 18D x 3H in. - Walmart.com
Pillow Perfect Outdoor/Indoor Terrace Caribe Tufted Seat Cushions 18.5-in x 19-in 2-Piece Blue Seat Pad in the Patio Furniture Cushions department at Lowes.com
Pillow Perfect Outdoor | Indoor Sea Island Blue Seat Cushion (Set of 2) 19 X 19 X 5 - Overstock - 31580892