10 Best Roof Bags

The Thule Force 3 L Sport is a well-sized roof bag measuring 191 x 63 x 42 cm, making it roomy enough for family trips or active lifestyles needing extra cargo space. It weighs about 14.8 kg, which is average for a box of this size. The box is built with durability in mind, designed to handle daily use and tough weather conditions, thanks to Thule’s rigorous testing for safety and reliability. Its sleek black matte finish adds a modern look while helping maintain the material's resilience.

Installation is straightforward with a secure mounting system that clicks into place, giving you confidence the box is properly attached. This system also reduces the chance of error or loose fitting, which is great if you’re not used to roof boxes. You’ll appreciate the convenience features like a lid pull strap for easy opening and closing, and optional accessories like a box light to improve visibility on the road. One smart design aspect is its forward position on the roof, which allows full trunk access with minimal risk of hitting the box, making loading and unloading easier. Security-wise, the secure mounting and Thule’s build quality provide reliable protection for your belongings during travel.

For users seeking a dependable roof bag that balances capacity, durability, and user-friendly installation, the Thule Force 3 L Sport is a strong choice. Its weight and size might require some effort to mount if you’re installing it alone, and it may be on the pricier side compared to simpler soft roof bags.

The COSTWAY 21 Cubic Feet Car Roof Bag offers a generous amount of storage space, making it a solid choice for family trips, camping, or road adventures where extra luggage room is needed. Its soft shell design is made from a tough triple-layer 840D PVC material, which is designed to be fully waterproof, tearproof, and resistant to sun, snow, and dust. This means your belongings should stay dry and protected even in bad weather.

Installation is user-friendly thanks to multiple reinforced straps and door hooks, allowing it to fit a wide range of vehicles—including those without roof racks—securely and without hassle. The included anti-slip mat adds protection for your vehicle’s roof and helps keep the bag stable during travel. Security is enhanced by a 4-digit combination lock and zipper hooks, which help prevent theft and keep the bag closed on bumpy roads.

One minor point to keep in mind is that, as a soft bag, it won't offer rigid protection against heavy impacts compared to hard roof boxes. Also, proper orientation of the bag is needed to ensure water resistance, as noted in the instructions. This roof bag delivers a reliable, weatherproof, and spacious storage solution with good security features and straightforward installation, making it a practical option for most casual users looking to expand their car’s cargo capacity.

The Sailnovo Car Roof Box is a spacious roof bag with a capacity of 20 cubic feet (about 580 liters), which is large enough to hold luggage for around 6 people. Its size (roughly 51 x 39 x 17 inches) makes it a great choice if you need extra storage space for trips. Made from durable 1000D PVC tarpaulin, it offers strong waterproof protection, keeping your belongings safe from rain, snow, wind, and dust. The material is also tear-resistant, which means it should last through many uses without damage.

Installation is straightforward thanks to 6 door hooks and adjustable straps, and it works well on cars with or without roof bars, adding to its versatility. For security, the bag uses multiple reinforced straps and hooks to keep it firmly attached even on bumpy roads. However, it is a soft shell bag, so it won’t protect your items from heavy impacts like a hard shell box would. The bag weighs about 3.6 kg, which is fairly light for its size but still something to consider when handling it.

If you prioritize extra space and weather protection in a flexible, easy-to-install roof bag, the Sailnovo is a solid option. It is highly waterproof and secure, but it won’t provide rigid protection for fragile items.