ultra sonic welded seams are 40% exclusive! • tyvek® top panel is triple-stitched to the polypropylene side panels • polypropylene side panels breathe to help prevent mold and mildew • contemporary two-tone design • water resistant tyvek this product uses dupont™ tyvek®material ultra-shield rv cover's top material is made by laminating two layers of spun-bond polypropylene to a third outer layer of dupont™ tyvek® water resistant breathable • blocks damaging uv rays • superior all-weather performance • tough yet breathable what is ultrasonic welding? ultrasonic welding is a method of joining two materials by converting electrical materials being held together under pressure to create the weld travel trailer item # length members reg sale product can expose you to chemicals california to cause cancer and birth defects year manufacturer warranty • covered air vents help prevent trapped moisture • zipper entry doors for easy access • fro and rear cinching straps reduce loose fabric for a perfect fit tyvek® top protects roof against uv and moisture universal-fit cover measuring instructions finding the right size cover is easy! simply measure your rv from end to end at the longest point • do not use the rv model number or manufacturer-stated length as actual length may vary do not include propane tanks or hitches • do not include rooftop accessories such as air conditioners or satellite antennas गगगगगगगगगगगगगगगगगगगगगगगगगगगग' maintain your rv see page 223 for details | catalog & internet only