【Upgrade Oxford Fabric】Based on the feedback from most RV enthusiasts, many Non-woven RV covers tear and decay after a few months. To address this issue, we have upgraded our RV cover with premium Oxford fabric (top 300D, sides 210D), which offers excellent tear resistance and anti-corrosion properties for enhanced durability. 【Enhanced Windproof Performance】Featuring a 6-strap tension panel design and increased 2 windproof straps for a secure fit. The elastic hem, adjustable front and rear panel straps, along with 10 enlarged air vents reduce wind force. Ensures extra protection against strong winds, preventing the cover from being blown away or torn. 【Choose Size Reminder】Do not use the RV model number or manufacturer-stated length as the actual length. Please measure before purchase, measurement should include the bumper, ladder or spare tire, but not include the hitch! If the length is close to the edge of the size range, please choose the larger size for the best fit. 【Intimate Use Design】4 Rollable Zippered door on both sides, granting you easy access to the RV doors and engine areas whenever needed. Stay connected to your RV's internal situations through the convenient rollable door. Plus, the yellow reflective panels ensure maximum safety during nighttime or parking.