🚘【RAINPROOF DESIGN】 2 kinds of protective measures,the roof rack bag made by the 500D folder grid after high-frequency pressing from refining into a dense and compact surface, coupled with invisible zipper well-designed magic stickers,protecting your luggage against rain, grit, snow, wind and sun. 🚘【OUTDOOR PARTNER】 -30 ℃~ 50 ℃ temperature range, add a protection for your adventure trip.Roof storage bag is designed to fit all roof racks with attachment capabilities on all four sides, if you have a car with a roof frame, this bag will be your trips’ best companion! 🚘【MORE SOLID】 8 X 1ft tie straps, hitched to the rack railings, not only can withstand the weight of 100 kg, but also to prevent baggage bag from inclining while driving, solid and reliable! 🚘【INCREASES SPACE】 15 cubic feet and 38'' x 38'' x 18" large capacity top bag, you can regulate your baggage, make more space for your family and friends, enjoy a comfortable and pleasant travel! 🚘【AFTER-SALE SERVICE】 AUPERTO is committed to provide one-year satisfactory service, have any questions,feel free to contact the seller customer service, 100% service and 100% satisfaction.