Swan 36 Framed winter cover. The Kinder Industries Swan 36 winter cover is fabricated using Harbor Time Edge Marine Polyester. The cover installs over a 1 inch Galvanized Steel Frame which uses slip fit tees and couplings to build a solid and rigid frame. The cover also includes an access door, large crush proof vents and storage bag. This cover is split at the mast and fabricated in 2 pieces. Also our cover is fabricated with fully finished collars.