The Designer Series UV Hydro Travel Trailer RV Cover can withstand all climates and is intended for use year-round. Designed with a 4-layer fabric, including a hydrophobic barrier to bead rain, this RV cover also features a reflective layer on top to keep your RV cool. With no detail overlooked, zippered entry points on both sides to accommodate slide outs, and this cover’s vents allow for efficient moisture dispersion - no need to worry about built-up mildew! Cover sizes range from micro travel trailer 15’ to 37’ travel trailer RVs.