Sun Wave, Slide-Out cover is as strong and durable as our patio awning fabric. Sun Wave, Slide-Out cover will fit any A&E (Dometic) and Carefree slide topper without a metal cover. Fabric is 16oz, 1000 denier strength, white in color, poly cord size is 1/4″ at rail and 1/8″ at tube. Poly cord is heat welded to give a stronger hold on the poly cord. The heat welded poly cord also resists tearing and ripping of fabric at top and bottom, along with protecting from leaking in stitching lines.