Ultra 6mm thick fiber pad and 100% cotton cover with storage pocket. Form fitting tailored nose and bungee cord binding for easy installation and a snug fit. Hook & Loop closure straps ensure cover and pad stays in place. NANOMAX technology: Ultra covers are stain and scorch resistant repel water and dirt fade resistant and eco-friendly. Cut full size to fit all standard 13-15 x 53-54 Tops.