Review on Himal Car Rooftop Cargo Carrier: 15 Cubic Feet, Heavy-Duty & Waterproof Vehicle Soft-Shell Bag | 8 Straps, 2 Zippers | Ideal for All Vehicles with/without Racks by Scott Carlile

This was a last minute purchase for a full day trip. I was able to install it in under half an hour with my son's help and pack it up and fix it in over an hour. Very happy with the way it holds things securely and the grippy pad underneath is a must. This helped prevent my car's roof from slipping and scratching. The straps are uncomfortable and difficult to understand. And once you tightened them you have to roll, wrap and secure with velcro but it didn't hold the straps and I had to stop every 2 hours to roll, wrap and secure again. It would be helpful to provide a slot on the outside of the bag for that extra item or something else on the bag to secure it and prevent it from being caught in the wind. But otherwise it has held up great and works for what we needed.