material Made of heavyduty wearresistant and tearresistant 600D PVC fabric, this roof bag is waterproof, snowproof, sunproof and dustproof. It is built to withstand all kinds of bad weather and longdistance travel. Spacious storage Measures 112 x 87 x 44 cm (L x W x H) with a capacity of 15 cubic feet. It can accommodate up to 4 sleeping bags and 2 medium suitcases, helping you save interior space and create a more comfortable driving environment. stability and security Includes an antislip mat to keep luggage in place and protect your car roof from scratches. Thickened straps and fourply stitched seams maintain stability even on speed or rough roads. Thoughtful design No bulky hardshell roof rack needed. The bag folds compactly into a small size for easy storage in a car trunk or a storage bag. It requires only occasional wipedown for maintenance. Practical use scenarios Family road trip: Extra luggage, blankets, and gear stored on the roof to keep the cabin roomy and comfortable. Winter or ski trip: Carry sleeping bags and suitcases for a long journey without compromising interior space. Camping or move: Provides additional weatherproof storage for camping gear or items being relocated, ensuring protection from the elements. Performance and maintenance Designed for durability in varied conditions, with a weatherproof 600D PVC exterior and reinforced straps. When not in use, it folds down for compact storage and can be wiped clean as needed.