Leader Accessories Travel Trailer Rv Cover Fits 27'-30' 3 Layer Size 366"x102"x104" Size: 366"L*102"W*104"H, fits trailer camper RV 27'-30' 3 layer polypropylene top fabric keeps out rain and snow while single layer polypropylene side fabric venting inside vapor out Multiple zippered panels for easy access to the front, back & sides Air vents reduce wind stress and vent inside moisture out Anti-hit reflective panels for added safety at night or while parking