Durable Construction: Made of high-quality reinforced 600D Ox cloth with coated mesh, this freighter is resistant to sand, dust, insects, scratches, tears, creases, sun, rain, and wind, offering durable performance and reliability. All-Weather Performance: Waterproof construction features high-frequency welds, hidden waterproof zippers, and double Velcro zipper flaps. The UV-resistant carrier with coated insect repellent provides reliable protection in various weather conditions. Oversized Storage Space: Offers ample storage capacity for large and bulky luggage. The soft-sided design accommodates oddly shaped items and allows the bag to be easily folded for storage when not in use. Aerodynamic Design: Features a streamlined body design that helps reduce wind resistance and improve vehicle stability, contributing to reduced noise and improved fuel efficiency. High-Performance Material: Constructed with 600D thickened Ox cloth, which offers superior waterproof performance compared to 420D fabric. Enhanced with thicker lining and greater tear strength. Treated with a waterproofing agent during post-processing to achieve effective water resistance. 600D waterproof Ox cloth provides waterproofing, moisture permeability, breathability, insulation, windproofing, and warmth retention. When exposed to rain, water droplets roll off the surface without penetrating the interior, similar to the lotus leaf effect. Features: - 100% waterproof roof duffel bag with 425-liter capacity - Made from military-grade material with waterproof double seam technology - Frameless design allows for easy folding when not in use - Buckle and double seam design help keep luggage secure and dry - Includes 8 strong quick-release straps for secure installation - Two-way high-strength sealing zipper for convenient loading - Professionally designed with 8 straps to keep contents in place - 100% waterproof seal design with welded seams and anti-penetration coating - Buckled flap covers the zipper to help protect against wind, rain, and snow during transit - Eight fixing straps to secure the bag and its contents - Compatible with all vehicles, with or without roof racks Specifications: Type: Vehicle Accessory Placement on Vehicle: Roof Roof Bag Dimensions: 120 x 51 x 51 cm Material: Waterproof Military-Grade Ox Cloth Package Includes: 1 x Duffle Bag Note: Additional anti-slip mats are available as a separate purchase option.