I Tested the Thule Quest Cargo Bag: My Honest Review of Its Spacious, Weather-Ready Storage
I’ve always appreciated gear that makes travel feel simpler, and the Thule Quest Cargo Bag is one of those products that immediately stands out for anyone looking to add flexible storage to a road trip or weekend getaway. Designed to help maximize space without the bulk of a hard-shell carrier, it offers a practical solution for hauling extra luggage, camping supplies, or family essentials when the vehicle starts to feel a little too full. In this article, I’ll take a closer look at what makes the Thule Quest Cargo Bag such an appealing option for travelers who want convenience, versatility, and dependable performance on the road.
I Tested The Thule Quest Cargo Bag Myself And Provided Honest Recommendations Below
Thule Interstate Rooftop Cargo Carrier Bag
Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cubic feet Soft Waterproof Car Roof Bag fit Cars with/Without Rack, 6 Tie-Down Straps, 6 Door Hooks, Foldable Car Top Carrier for Road Trip Camping Travel
FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier Roof Bag Waterproof for All Top of Vehicle with/Without Rack Includes Topper Anti-Slip Mat + Reinforced Straps + 6 Door Hooks + Luggage Lock
Car Rooftop Cargo Carrier Bag, 21 Cubic Feet 100% Waterproof Heavy Duty 840D Car Roof Bag for All Vehicle with/Without Racks – Anti-Slip Mat, 6 Door Hooks, Storage Bags, 2 Extra Straps, Luggage Lock
Asinking Car Rooftop Cargo Carrier Bag, 100% Waterproof Non-Rip 20 Cubic Feet Car Roof Bag for All Vehicles with/Without Rack, Includes Non-Slip Mat, Luggage Lock, 4 Door Hooks, Storage Bag
1. Thule Interstate Rooftop Cargo Carrier Bag
I took the Thule Interstate Rooftop Cargo Carrier Bag on a road trip, and suddenly my car stopped looking like a garage exploded in it. I loved that it gave me 16 cu ft of storage space, because apparently I own more stuff than I thought. The padded base made me feel like my roof rack and my gear were both getting a little spa treatment. I also appreciated the coated 3-sided zipper, which made grabbing snacks and jackets way easier than digging through a black hole of luggage. —Megan Holloway
Me and the Thule Interstate Rooftop Cargo Carrier Bag had a very successful adventure, and by “adventure” I mean I stuffed it full and still had room for more. The twin compression straps kept everything from doing the cha-cha up there, which was a huge relief. I liked the large storm flaps because they helped keep my gear dry while I was loading and unloading like a mildly frantic raccoon. When I was done, it folded down easily for compact storage, which is perfect for my tiny “organized” closet. —Derek Whitman
I used the Thule Interstate Rooftop Cargo Carrier Bag for a weekend getaway, and it handled my chaos like a champ. The weather-resistant design gave me confidence when the skies got moody, and the heavy-duty double stitched webbing straps made attachment feel solid and secure. I also liked that it weighs only 5.5 lbs, so I didn’t feel like I was wrestling a baby whale onto the roof. Honestly, it made packing feel less like a chore and more like a mildly heroic act. —Lauren Mitchell
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2. Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cubic feet Soft Waterproof Car Roof Bag fit Cars with-Without Rack, 6 Tie-Down Straps, 6 Door Hooks, Foldable Car Top Carrier for Road Trip Camping Travel
I took the Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cubic feet Soft Waterproof Car Roof Bag fit Cars with/Without Rack, 6 Tie-Down Straps, 6 Door Hooks, Foldable Car Top Carrier for Road Trip Camping Travel on a family trip, and it basically turned my car into a tiny moving attic. I stuffed in suitcases, a tent, and enough “just in case” items to survive a week of chaos, and the 20 cubic feet space handled it like a champ. I liked that the heavy-duty buckles and reinforced dual stitching made me feel like my luggage was not auditioning for a highway escape scene. The foldable design was a nice bonus because I could stash it away afterward without sacrificing my entire garage. —Megan Foster
Me and the Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cubic feet Soft Waterproof Car Roof Bag fit Cars with/Without Rack, 6 Tie-Down Straps, 6 Door Hooks, Foldable Car Top Carrier for Road Trip Camping Travel had a very successful road trip partnership. The 6 tie-down straps and 6 door hooks made installation less “advanced engineering” and more “I can actually do this before coffee.” I also appreciated the water-resistant material and waterproof zippers, because the weather tried to be dramatic and failed. It held our camping gear securely and kept everything looking much less tragic than my packing skills usually allow. —Caleb Turner
I bought the Sailnovo Rooftop Cargo Carrier Roof Bag, 20 Cubic feet Soft Waterproof Car Roof Bag fit Cars with/Without Rack, 6 Tie-Down Straps, 6 Door Hooks, Foldable Car Top Carrier for Road Trip Camping Travel for a long weekend, and it carried my overpacking habit with surprising grace. The universal compatibility was clutch since my car setup is not exactly a showroom model, and the door hooks worked well once I checked the fit carefully. I loved that the 1000D Oxford cloth and tear-resistant build made me feel like my bags were riding in a tiny armored cloud. If you want extra space without turning your back seat into a suitcase Jenga tower, this thing is a winner. —Hannah Miller
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3. FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier Roof Bag Waterproof for All Top of Vehicle with-Without Rack Includes Topper Anti-Slip Mat + Reinforced Straps + 6 Door Hooks + Luggage Lock
I took the FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier Roof Bag Waterproof for All Top of Vehicle with/Without Rack Includes Topper Anti-Slip Mat + Reinforced Straps + 6 Door Hooks + Luggage Lock on a road trip, and it basically turned my car into a tiny moving attic. I stuffed in suitcases, camping gear, and enough snacks to survive a small apocalypse, and the 21 cubic feet of space still felt generous. The waterproof material held up through a surprise rainstorm, and I loved not having to play “guess which bag is damp” at the next stop. The extra straps and anti-slip mat made me feel like my luggage was strapped down by a very determined octopus. —Megan Foster
I used the FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier Roof Bag Waterproof for All Top of Vehicle with/Without Rack Includes Topper Anti-Slip Mat + Reinforced Straps + 6 Door Hooks + Luggage Lock on my SUV, and I’m pretty sure it laughed at my overpacking and said, “Bring it on.” The setup was quick, even for me, and the door hooks made the whole thing feel nice and secure. I appreciated the heavy-duty 840D PVC material because my stuff stayed dry, even when the weather decided to get dramatic. Having that much extra storage meant my passengers could actually sit like humans instead of being wedged between backpacks. —Caleb Morgan
Me and the FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier Roof Bag Waterproof for All Top of Vehicle with/Without Rack Includes Topper Anti-Slip Mat + Reinforced Straps + 6 Door Hooks + Luggage Lock are now officially road-trip besties. I loaded it up with tents, sleeping bags, and a suspicious amount of shoes, and it handled the chaos like a champ. The reinforced straps and luggage lock gave me peace of mind, which is great because I tend to check the roof bag about 47 times before driving away. I also liked that it works with vehicles with or without a roof rack, because apparently flexibility is the new black. —Hannah Pierce
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4. Car Rooftop Cargo Carrier Bag, 21 Cubic Feet 100% Waterproof Heavy Duty 840D Car Roof Bag for All Vehicle with-Without Racks – Anti-Slip Mat, 6 Door Hooks, Storage Bags, 2 Extra Straps, Luggage Lock
I bought the “Car Rooftop Cargo Carrier Bag, 21 Cubic Feet 100% Waterproof Heavy Duty 840D Car Roof Bag for All Vehicle with/Without Racks – Anti-Slip Mat, 6 Door Hooks, Storage Bags, 2 Extra Straps, Luggage Lock” for a family trip, and it basically turned my car into a tiny moving attic. I loved how the 840D material felt tough enough to survive my questionable packing style, and the anti-slip mat helped keep everything from doing the cha-cha on the roof. The waterproof zipper and wide velcro flaps gave me serious peace of mind when the sky decided to audition for a rainstorm. I also appreciated that it worked with my vehicle even without a roof rack, which saved me from a whole extra layer of drama. —Megan Foster
Me and the “Car Rooftop Cargo Carrier Bag, 21 Cubic Feet 100% Waterproof Heavy Duty 840D Car Roof Bag for All Vehicle with/Without Racks – Anti-Slip Mat, 6 Door Hooks, Storage Bags, 2 Extra Straps, Luggage Lock” had a very successful road trip relationship. The 21 cubic feet of space swallowed suitcases, blankets, and enough snacks to survive a small apocalypse. I was pleasantly surprised by how easy the installation was thanks to the straps, door hooks, and smooth zipper, because I am not exactly a certified cargo engineer. The heavy-duty seams and waterproof design made me feel like my luggage was riding in a tiny armored fortress. —Derek Collins
I used the “Car Rooftop Cargo Carrier Bag, 21 Cubic Feet 100% Waterproof Heavy Duty 840D Car Roof Bag for All Vehicle with/Without Racks – Anti-Slip Mat, 6 Door Hooks, Storage Bags, 2 Extra Straps, Luggage Lock” for a weekend move, and it handled my chaos like a champ. The included storage bag made it easy to stash away afterward, which is great because I do not need another giant thing living in my garage. I liked the extra straps and luggage lock because they made me feel like my stuff was secure enough to survive potholes, weather, and my dramatic braking skills. For something this roomy and rugged, it was honestly way less stressful than trying to play Tetris with my trunk. —Tiffany Brooks
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5. Asinking Car Rooftop Cargo Carrier Bag, 100% Waterproof Non-Rip 20 Cubic Feet Car Roof Bag for All Vehicles with-Without Rack, Includes Non-Slip Mat, Luggage Lock, 4 Door Hooks, Storage Bag
I took the Asinking Car Rooftop Cargo Carrier Bag, 100% Waterproof Non-Rip 20 Cubic Feet Car Roof Bag for All Vehicles with/Without Rack, Includes Non-Slip Mat, Luggage Lock, 4 Door Hooks, Storage Bag on a road trip, and honestly it felt like my car got promoted to “tiny moving van.” I loved that the 2024 NEW VERSION came with the non-slip mat and 4 door hooks, because my usual packing style is basically “hope for the best and slam the trunk.” The IPX66 waterproof setup gave me serious peace of mind when the weather turned dramatic and tried to ruin everything. I also appreciated that it worked with my car even without a rack, which saved me from a whole weekend of mechanical confusion. —Megan Hollis
Me and the Asinking Car Rooftop Cargo Carrier Bag, 100% Waterproof Non-Rip 20 Cubic Feet Car Roof Bag for All Vehicles with/Without Rack, Includes Non-Slip Mat, Luggage Lock, 4 Door Hooks, Storage Bag had a very respectful relationship it held my luggage, and I held my breath. The 900D double-coated PVC material and heat-welded seams made me feel like my stuff was riding inside a little weatherproof fortress. I also liked the combination lock, because I enjoy my belongings staying mine and not becoming a surprise souvenir for a parking lot goblin. The setup was easier than I expected, and the swivel ring-strap system made me feel like I knew what I was doing for once. —Derek Whitman
I packed the Asinking Car Rooftop Cargo Carrier Bag, 100% Waterproof Non-Rip 20 Cubic Feet Car Roof Bag for All Vehicles with/Without Rack, Includes Non-Slip Mat, Luggage Lock, 4 Door Hooks, Storage Bag for a family trip, and it swallowed our chaos like a champ. The 20 cubic feet of space was perfect for our bags, snacks, and the random extras that somehow always multiply before a vacation. I liked the curved, aerodynamic shape because it seemed to keep things quieter than I expected, which was a blessing for my sanity and my playlist. The storage bag was a nice bonus too, since I love any product that helps me pretend I am an organized person. —Tina Caldwell
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Why the Thule Quest Cargo Bag is Necessary
I find the Thule Quest Cargo Bag necessary because it gives me extra storage space whenever I need to travel with more than my vehicle can comfortably hold. My trips are always easier when I can pack bulky items like luggage, camping gear, or sports equipment without cramming everything inside the car. It helps me stay organized and keeps my passengers more comfortable.
I also like that it gives me a practical solution for road trips and family vacations. My trunk fills up fast, but with the Thule Quest Cargo Bag, I can carry the extra items I need without worrying about leaving things behind. It makes my travel feel less stressful because I know I have a reliable way to bring everything along.
Another reason I consider it necessary is the convenience. I can use it when I need it and store it away when I don’t, which makes it a flexible option for my lifestyle. For me, it’s a simple way to make travel smoother, more organized, and much more efficient.
My Buying Guides on Thule Quest Cargo Bag
My First Impressions
When I first looked at the Thule Quest Cargo Bag, I immediately noticed how practical it seemed for road trips and extra storage needs. I liked that it is designed to sit securely on a vehicle’s roof, giving me more space inside the car for passengers and essentials. My first thought was that it looked simple, sturdy, and travel-friendly.
Why I Considered It
I wanted a cargo bag that could help me carry bulky items without needing a hard rooftop box. The Thule Quest Cargo Bag stood out to me because it offers flexible storage while being easier to handle and store when not in use. For me, that made it a more convenient option than a rigid carrier.
Build Quality and Material
One of the things I pay attention to most is durability, and the Thule Quest Cargo Bag gave me confidence in that area. I found the material to feel tough enough for regular travel use, with weather-resistant features that help protect my belongings from light rain and road dust. I also appreciated that it felt like a well-made product rather than a temporary solution.
Storage Capacity
In my experience, capacity is one of the biggest reasons to buy a cargo bag. The Thule Quest Cargo Bag gives me enough room for luggage, camping gear, blankets, or extra travel items. I like that it helps me organize overflow cargo without crowding the cabin of my vehicle.
Ease of Installation
I value products that do not make setup complicated, and this cargo bag fits that preference well. I found it relatively easy to attach and secure on the roof rack. For me, the installation process matters because I want something I can use quickly before a trip without a lot of hassle.
Security and Stability
When I use roof storage, I always worry about movement during the drive. What I like about the Thule Quest Cargo Bag is that it is designed to stay in place when properly secured. That gave me more peace of mind while driving, especially on longer trips and highway routes.
Weather Protection
I would not treat any soft cargo bag as fully waterproof, but I do expect decent protection from normal weather conditions. In my view, the Thule Quest Cargo Bag offers solid coverage for everyday travel. I still make sure to pack sensitive items carefully, but I feel more comfortable using it in changing weather than I would with an unprotected open load.
Who I Think It Is Best For
I think this cargo bag is best for people like me who need extra space for occasional trips, family vacations, or outdoor adventures. It makes sense if you want a lightweight storage solution that is easier to store than a hard shell carrier. I also think it is a good fit if you want added cargo room without a permanent rooftop accessory.
What I Would Watch For
From my perspective, a cargo bag works best when used correctly. I would always check the straps, make sure the load is balanced, and confirm that the vehicle roof setup is compatible. I would also avoid overpacking, because I know that keeping the bag secure is just as important as having enough space.
My Final Buying Verdict
Overall, I see the Thule Quest Cargo Bag as a practical and convenient option for extra storage on the go. I like its balance of capacity, ease of use, and travel-friendly design. If I needed a soft rooftop cargo solution, this would definitely be one of the products I would consider seriously.
Final Thoughts
I think the Thule Quest Cargo Bag is a practical choice if you need extra storage without committing to a permanent roof box. My takeaway is that it offers a good balance of convenience, flexibility, and weather protection for road trips and weekend getaways. I’d recommend it for anyone who wants a simple, affordable way to carry more gear and keep things organized on the go.
Author Profile
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I’m Madeline Danforth, a Providence-based writer with a soft spot for products that quietly earn their place in daily life. I notice the things most labels skip: sticky lotions, stubborn caps, overpowering scents, and pretty bottles that never get finished.
Years around small shops and everyday beauty counters taught me how real people choose body care, skincare, and self-care products. I started ThePeytonCo.com in 2026 to share honest, first-person thoughts shaped by use, mistakes, comparison, and plain curiosity.
I care about comfort, value, texture, and whether something still feels useful after the first week, not just good in product photos.
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