Our deluxe swing back cushion is a comfort accessory to any unique-shaped swing. We call our cushion deluxe because it is made using standard fill with batting on the bottom and top to give a plush feel and a crowned look. Because your swing does not meet our standard shapes online, you will need to mail us a template. Our seasoned sewers can make virtually any shape cushion, but you will need to make sure your template is accurate. We recommend placing your created template on your swing back to make sure it fits properly. Measurements do not include thickness of welting.