Nothing has been left out in making Achilles RV Series riverboats the strongest available for professional use. Both the 840 denier tube fabric and the additional 840 denier fully-wrapped floors are coated with DuPont Hypalon™ for unsurpassed protection against damage from abrasions, punctures and weathering. All D-rings have been strengthened to last on all stress points and tie downs. Plus, you have the guarantee of famous Achilles quality and attention to detail on all the great standard features which make these boats ready for any professional use.