GEARCELL Car Roof Bag 21 Cubic Feet Waterproof 840D Rooftop Cargo Carrier Bag for All Cars with/Without Racks Includes Anti-Slip Mat Storage Bag Luggage Lock. 【Waterproof & Anti-tear】: Car Roof Bag is constructed with heavy-duty 840D abrasion-resistant PVC fabric,double-layer rain cover and using seamless hot press technology, which not easy to ripped on the body and seam.