Harbor Time Polyester J-70 Deck Cover. The Deck Cover can be used with the mast stepped, or with the mast down. Tke KI J-70 Deck Cover is fabricated with a 10 inch bungeed skirt that can be color customized for additional $50.00! Cover also has boots for added strength at each of the openings, for stanchions, etc. The KI J-70 Deck Cover is further secured to the hull with one inch webbing and side release buckles every two feet for easy installation and removal.