HULL HUGR Contour Boat Fender Traditional round fenders protect hulls fairly well, but not gunwales. Ski boats, bass boats and runabouts with step-down gunwales are especially vulnerable to damage from docks. The HULL HUGR Contour Boat Fender hinges to wrap around the gunwale and hull, following the contours of the boat. It can also be used as a flat fender on both boats and docks. HULL-HUGRs contour fenders are constructed of a durable marine-grade, tri-laminate cover with closed cell foam on t