🚙SAFE DESIGN: Manfiter roof bag use10 reinforced adjustable straps and strong buckles, kept the roof bag tightly secured for the entire trip. High-density tear-resistant 1218D Oxford waterproof cloth, and the newest PVC materials. Can effectively protect your luggage against rain, grit, snow, wind, and sun on the road. No scratch to your car. 🚙STRONG WATERPROOF：Car roof bag is made of dual seam technology with water repellent double coating, Waterproof zipper is sealed with dual-layer leather, All seams are heat welded and stitched to ensure they are watertight. 100% waterproof and rainproof under extreme weather. 🚙EXTRA LARGE SIZE: 20 cubic feet rooftop cargo carrier, can easily hold 4-6 suitcases, Free up inside vehicle space for more comfortable on the way. With TSA lock helps you pass Canada customs. 🚙UNIVERSAL FOR WITH/WITHOUT RACK: Manfiter rooftop cargo carrier is universal luggage type for SUV,cars,pick-up,etc. The rooftop cargo carrier is easy to be installed, with 6 door hooks and 10 reinforced straps. It can be quickly and easily installed in minutes whether your vehicle has a rack installed or not. 🚙PACKAGE CONTENTS: 20 cubic feet roof bag, Anti-Slip Mat, 6 Door Hooks, TSA lock, Storage bag, User Manual. Lifetime Warranty Service.