This full-deck mast-up mooring cover fits over the boom. The cover is reinforced at fittings and other critical pressure points. Vents fore and aft circulate air to minimize condensation. Heavy-duty UV-resistant polyester zippers run to the mast and sidestays. Convenient YKK® buckle closures at the bow, with quick release buckles at bow and sidestay hem for easy on and off. The wrap-around mast collar with ties offers additional protection.