Amazon Basics Rooftop Cargo Carrier Bag, Black, 424.8 litres, 15 cu. ft.

Holds a lot of items and comes in a very handy storage bag so doesnt take up a lot of space when not being used. Straps are nice and secure but can be tough to tighten but that's probably due to it being new and first time use.

Really happy with this roof bag! I was thinking of getting a rail and hard box set-up for my car but it works out quite expensive, as well as the storage consideration when not in use.However, for £50, this was perfect. It did a 500 mile round trip no problems, including rainy motorway driving.I looped the straps around my roof side bars, pulled tight to clip in, and tied any ‘loose’ straps to prevent wind noise. I also added a padlock for peace of mind when we stopped in services.

It’s a really inexpensive way of getting that extra luggage space when travelling. My partner and I, with 2 nieces, a nephew and dog loaded up the Ford Kuga for a weekend caravan holiday.It has masses of space, which is a bit of a downfall as it means that it can move around a lot and can’t strap it down as well. I only used the side bars on the Kuga, but I guess a set of Thule crossbars would help this. There is also an anti slip mat that can be purchased but I don’t know how well this would stop it from slipping. The fuller the bag, the more it will stay firm and in shape.The straps are strong - just make sure you tighten these as they will flap about.Also it is extremely waterproof. I went through an absolute monsoon. It was a typical Scottish adventure - 4 seasons in one day. The contents stayed dry. There was a slight bit of dampness on the front of my holdall which was pushed to the very front of the bag so would have got the force of the elements from being at the front. Luckily this was on the way home, but I don’t think my clothes would have been too bad if it were on the way there.I would recommend that you use an anti slip mat or crossbars to keep this secure. It comes with a nice waterproof carry case, we packed this with some stuff too. I would also recommend that you have a waterproof hold-all or backpacks to load it with.

Very pleased with purchase.Good quality , great size and fits my roof rack perfectly . Straps are good and fully adjustable Very pleased with it

Unfortunately the bag was too big for our small car's roof rack, however, as other reviews have said, it's a seriously good bag for the money. I have returned it, but only because it was too big, and have opted for individual Dry Bags instead. I think the best review photo I saw was from someone who is using it in the back of a pick-up truck. It's most definitely excellent value for money, and for a certain purpose, it was just unfortunate that it wasn't going to work for my particular situation. I would however, not hesitate in buying the bag again for a different application. The double opening zipper was, as reported by others, easy to use and of good sturdy quality, with a weather flap that velcros over the zip for added waterproofness. As noted by another reviewer, you do need to make sure that the area where the two zippers meet is facing backwards if it's on a car roof, to further ensure that no prevailing water coming towards your vehicle sneaks in between the two ends of the closed zip, despite the weather flap's existence. Really, it's an excellent bag. The Amazon branding, by the way, points forwards and backwards, that is how you know which way around it goes on your roof. Also, it refolds easily and the storage bag, which is made from the same material, is nicely over-sized so getting the roof bag back into its 'holdall' is easy too.

This carrier bag held a king size duvet, lots of pillows, a small suitcase and another bag.We forgot it was on the roof and was it able to deal with motorways without moving, although we did use an anti slip mat just in case.No leaks, and it poured down with rain on the way back from our trip.Having downsized, we don’t have much storage space at home, so this is brilliant for anyone in the same predicament.As for security, personally would not leave unattended with stuff inside. A lock might work, but there would be other ways to get inside the material if one was determined!I recommend this product and hope it lasts a long time.

Good, for what it is and a good price. It is very flexible and holds a lot, but the downside is that it sits on your roof and it can flap in the wind. I used it for one summer and have now bought a traditional roofbox.

4 stars only because quality control didn’t pick up a couple of the clips were upside down ( very easy to change around myself but regrettable to have to )Other than that it is, and has performed exactly as I expected - very well. Roof boxes are not as capacious, take up a lot of valuable real estate in my garage, are vastly more expensive, and as this will only be used for the odd weekends away and 2 family camping holidays a year and it packs away neatly into its small stowage bag, it is a great addition to our transportation requirements.Have already used it for 1 camping trip, where it did rain while driving to the site and it was weather tight- happy customer