COSTWAY 15/21 Cubic Feet Car Roof Bag, 100% Waterproof Roofing Cargo Carrier with Anti-Slip Mat, Combination Lock & Straps, Rooftop Luggage Storage Box (Black, 15 Cubic Ft/424L)

Really happy with this roof bag…holds loads of stuff and felt very secure especially with the anti slip mat underneath. Very easy to fit straps to car (I have no roof bars) and more importantly it was waterproof..we were rained on a lot..fabric was thicker than expected..would definitely recommend.

Going to write a pretty long review as was very dubious about buying this roof bag and hope it helps someone else. When buying this roof bag, consider how many times you will be using it a year as using once/twice a year is fine but I personally don't think I would be happy using this lots. If you are practical then this roof bag should present no problems fitting and securing, if you're not then go to Halfords, buy and get them to fit roof bars and top box to your car. When packing, place your bedding, towels etc on the bottom covering the whole of the roof bag to protect your roof. Easy to secure with only having to use the 6 straps provided and stayed in place upto speeds of 90 mph (on the Autobahns) so no worries there at all. Didn't have to retighten straps as made sure it was fully loaded but may shift if not packed properly. When it comes to waterproof, we drove through two yellow warnings for rain and it was constant both there and back and absolutely no leaks at all, clothes, food, bedding and towels all dry. We were going to hire roof bars and top box but down to cost this beats it hands down. To sum up, cheaper than hiring a top box, no worries about storing a bulky top box in the garage as folds down very small and can be stored in a cupboard, definitely waterproof, good value for money. Would recommend

We bought this at Christmas for travelling around to the relatives. We don't have roof bars as its a company car so we thought we'd try this.It is a bit fiddly to fit but we'll get better with time. We did a 5 hour journey on the motorway and were concerned about it staying on (we couldn't use the front and rear straps) so we bought 2 ratchet straps in addition for peace of mind.The 2 teenagers had loads more space in the back than usual. It rained heavily on route but everything stayed dry. The fabric feels sturdy too. Bonus, a roof box would have made the cost of the ferry higher, but this was low enough to not need to change our ticket. And we'll be able to use this with any car.Looking forward to trying this on a camping trip, it will greatly increase the amount of equipment we can bring. Definately recommend.

We went on a family holiday we contacted it with the inside straps and it was raining and the water was leaking in to the car not sure if I contacted them correctly but part from that everything in side the bag was dry an will us again but maybe strap on a different way.

Well pleased with this storage. Perfectly simple to used but fiddly. Like someone else said as time goes on you'll get better at fitting. It held loads which freed up space in the car and l travelled along at 70mph without any worries about it moving about. Very waterproof. Recommended to neighbours.

I was a bit concerned because of the price but the material is very good quality, and the bag provides lots of extra space.Our car has no roof bars but the kit comes with 6 adaptors for this (although the bag has 10 straps). I followed the instructions and it took me a while to put everything in place. At the end it was all good. We had a long trip to northern Ireland, including rain and strong wind, and everything inside the bag was super dry.Things to mention; the bag has 2 straps on the front and 2 on the back (apart from the lateral ones). The only way I found to attach those was using the lateral adapter so the bag looks like in the picture, with the orange front skirt facing up after the trip. In any case nothing much to worry about.

Very well made, easy to use. Got four of us to wet Wales for a week. Four cases, buckets and spades and a body board in there. All dry, no noise, I'm impressed

Did the job, this can go ontop of any car, has lots of room, I was able to put 5 peoples baggage (was in travel bags not suitcases) for a week away inside and travel a fair distance and as long as its tightened correctly its good to go.Long straps need extra knots to stop from tapping car, less contents can move around the bag so better to fill it out.