Sunfish Mast Up Flat + Rudder Cover made in America by skilled artisans at SLO Sail and Canvas.  1/4" shockcord is built into cover to secure your cover tightly around the boat's rubrail. Webbing loops are sewn around the perimeter of our top covers allowing your cover to be tied to your boat. A mast collar fits tightly around your boat’s mast. All of our covers are patterned from the actual boats they are designed to fit. This make for a better, higher quality product.