Leader Accessories Travel Trailer Rv Cover Fits 20'-22' 3 Layers Polypropylene Size 270"x102"x104" Size: 270"L*102"W*104"H,fits travel trailer RV 20'-22' 3 layer polypropylene top fabric keeps out rain and snow while single layer polypropylene side fabric venting inside vapor out Anti-hit reflective panels for added safety at night or while parking Air vents reduce wind stress and vent inside moisture out Extra reinforced corners with elasticized hem for custom-like fit and prevent tearing of your cover