Woven underbelly for recreational vehicles, provides maximum strength for bottom board applications. Acts as an excellent barrier between road hazards and the RV or Motorhome subfloor. More economical and reliable than metal. We also carry the Underbelly Seam Tape. Our Underbelly has been used on several different Vehicles like Fleetwood, Winnebago, ForestRiver, Thor, Skyline, Monaco etc. It is available in black and comes 105” wide. Sold by the running foot. Waterproof Material.