This 4 Layers 4 Side Open Caravan Campervan Cover Straps 20-22FT is a heavy duty caravan cover made of genuine 4 ply non-woven polypropylene which is supremely waterproof and more durable. Spanning the entire roofing area of the caravan, the slick outer later enables dirt and debris to simply slide off cover whilst providing full UV protection. Additionally the material is designed to be 100% breathable as to prevent moisture build up and resulting mould and mildew. The cover also features tough interlocking seams and elasticized hems and connecting straps and buckles allowing a tailored and secure fit for a wide range of caravan sizes. A zip opening situated on the side of the cover enables easy and convenient access to the caravan.