Traditional round fenders roll up, leaving boats unprotected and they're bulky to stow. HULL HUGR to the rescue! When boats rock, HULL HUGR stays put.The innovative HULL HUGR protects boats better than 6 traditional fenders.The ingenious patented design enables you to fold it up to a very compact size, easy to stow, or use it as a cushion. Hull Hugr is constructed of UV and puncture resistant marine grade vinyl / polyester tri-laminate. Six blocks of durable closed-cell foam are sealed inside.There are 3 sizes to fit every boat, dock, and slip: HH-M & MW: 7 1/2 feet long x 22 inches tall, 6 - 20 inch x 6 inch x 2 inch foam bumpers, folds to only 22 inches x 15 inches x 4 inches. For medium profile boats, pontoons, deck boats, houseboats, sailboats and cruisers up to 30 ft.