KEEPER's waterproof roof top cargo bag is the ideal accessory for the family on the go, adventurous couples and anyone looking for that added space while traveling. Don't limit what you can take with you when away from home, carry it safely and securely where ever you go. With 15 cu-ft of protected storage you'll have room for your luggage, gear and more, all being protected from road grit, sun, wind and rain while on the go. Made of rubber laminated nylon, with attachment points on all four sides. Designed to fit all roof racks with attachment capabilities on all four sides, if less than four, caution needs to be taken for secure attachment. Soft-sided design allows for easy storage when not in use.