Durable material: upgraded motorhome covers class C, the top panel fabric to extra thick 7-ply non-woven fabric mixed with Anti-UV Composite and waterproof membrane, protect against rain, snow and scratches. Reduces premature aging of motorhome. Abundant accessories : 1* class c motorhome cover perfectly fits 20' to 23' motorhome, 1* storage bag, 1* adhesive repair patches, 1* Ladder Cover, 2* extra wind ropes, 6* gutter covers with sponge design could also used for sharp parts of your motorhome Upgraded Anti-UV & Windproof: The proportion of UV-resistant composites increased , and the anti-UV ability increased by 35% ! Top 6-ply non-woven fabric mixed with Anti-UV Composite and waterproof membrane, Avoid aging, disintegration and tearing of top fabric due to exposure to the sun. 2PCS extra wind ropes to resist the wind better. Inner many waterproof straps and buckles at bottom are more anti-aging than the outsides. Upgraded waterproof & Good Air Permeability- 7 layers of fabric built-in waterproof film,fabric is thicker and more durable than others on the market, strong waterproof performance. There are total of 6 vents can effectively reduce the wind pressure and discharge the internal moisture. The breathable material can maximize the evaporation of water under the cover ,keep the inside of the cover clean, and the quick drying system can protect your motorhome at the same time. Easy to install: The weighted buckle toss-bag under for easy installation, 3 zippered panels allow access to the motorhome doors and engine areas anytime, easy to view and check internal situation, 4 reflective strips in front and rear for safety avoid collision during night.