RV Covered Wagon: Tri-PolyPro Advanced Class C RV Cover 35' to 38' Designed to fit Class C RVs from 35FT - 38FT Weatherproof Zipper tabs at every entry point give convenience and ease of access to your RV without removing the cover. Double pair weatherproof stitching at all seams for extra strength protection and durability. Adjustable tension strap panels help the fabric hug to the contours of the RV for an extra taut fit. 3 Year Limited Warranty