Use the Rightline Gear Sport 3 Car Top Carrier with or without a roof rack. Just attach the straps to a roof rack or use the Car Clips to attach the straps to a vehicle's door frame weather molding.
Features
100% waterproof design features welded seams and an SZIP™ waterproof zipper to keep water out; no zipper flap required
Made from UV-protected PVC semicoated mesh XT for maximum durability
Enclosed front end helps fit your gear to the size of the carrier and prevents overfilling
Designed for SUVs and minivans, with or without a roof rack
Capacity: 18 cu. ft.
Includes: carrier, 4 attachment straps, 4 car clips and stuff sack with sewn-in setup guide