GOLDLINE BRAND RV COVERS BY EEVELLE Goldline RV covers are designed to satisfy even the most discriminating customers by outperforming every other cover in all critical categories of RV protection. Precision design and expert tailoring with the finest materials make this a high end RV cover that is as durable as it is beautiful.NEW FOR FALL 2018 Goldline RV covers now come with Endurance Roof Straps?. This innovative new feature prolongs the life of the roof by supporting the weight of the sidewalls. Our Marinex marine grade fabric is a heavy duty 7 oz. true loom-woven Polyester constructed of 600 x 300 denier filament polyester yarns and 99 thread count. It is coated with Durapel UV inhibitor and Anti-Microbial finish to make it UV and mildew resistant. The result is an incredibly strong yet breathable product that will provide protection for your RV for many years to come.