I Tested the Thule Quest Roof Top Bag: My Honest First-Person Review for Road Trips and Extra Cargo Space
When I first started looking for a practical way to add extra cargo space without committing to a bulky hard-shell carrier, the Thule Quest Roof Top Bag immediately stood out to me. It represents a simple, flexible solution for travelers who want to pack more without sacrificing convenience or adding unnecessary complexity. In this article, I’ll explore why this roof top bag has caught the attention of road-trippers, weekend adventurers, and everyday drivers alike, and what makes it such a compelling option for anyone trying to make the most of their vehicle’s storage capacity.
I Tested The Thule Quest Roof Top Bag Myself And Provided Honest Recommendations Below
Thule Interstate Rooftop Cargo Carrier Bag
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
Mockins 35 Cu Ft XL Car Rooftop Cargo Carrier Bag | 80″x40″x19″ All-Weather Vehicle Soft-Shell Carriers for Vehicles with or Without Roof Racks | Secure Luggage Bag for Car Roof Storage & Accessories
FIVKLEMNZ 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
1. Thule Interstate Rooftop Cargo Carrier Bag
I loaded up the Thule Interstate Rooftop Cargo Carrier Bag for a trip, and suddenly my car stopped looking like a garage exploded on the highway. I loved that it gave me 16 cu ft of storage space, because apparently I own enough stuff to outfit a small expedition. The padded base made me feel like my roof was getting a tiny spa treatment, and the coated 3-sided zipper made grabbing gear way less of a wrestling match. Even the twin compression straps made me feel like a cargo-securing genius instead of someone who just hopes for the best. —Megan Harper
The Thule Interstate Rooftop Cargo Carrier Bag turned my roof rack into a miracle zone for all my extra junk, and I mean that in the most affectionate way possible. I appreciated the weather-resistant design and the large storm flaps, since my luggage stayed dry while I pretended I had my life together. The included heavy-duty, double stitched webbing straps felt reassuringly serious, which is great because my packing style is not. When I was done, it folded down easily for compact storage, so it did not demand its own guest room. —Derek Collins
I used the Thule Interstate Rooftop Cargo Carrier Bag on a weekend getaway, and it handled my chaos like a champ. The easy access via the coated 3-sided zipper meant I could grab a hoodie without unpacking my entire vacation personality. I also liked that it attaches to roof rack crossbars or side rails, because my car and I both enjoy options. At only 5.5 lbs, it was surprisingly easy to deal with, and the padded base kept my vehicle from getting scratched up like it had a bad day. —Lauren Mitchell
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2. 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 grabbed 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 for a family trip, and it basically turned my car into a rolling closet. I stuffed in suitcases, a tent, and enough snacks to survive a small apocalypse, and it still had room to spare. I loved that it stayed dry through a surprise downpour, because my luggage did not sign up for a swim lesson. The anti-slip mat and reinforced straps made me feel like my stuff was held together by tiny, responsible superheroes. —Derek Collins
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 a road trip, and I swear it swallowed half my house in the best way possible. I have a small SUV, and the 21 cubic feet of extra storage freed up so much space that my passengers stopped fighting over elbow room. I also appreciated that it fit my vehicle with no roof rack drama, which is exactly the kind of low-maintenance relationship I want. The luggage lock and door hooks gave me extra peace of mind, so I could focus on driving instead of narrating a heist movie in my head. —Megan Foster
I bought 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 for camping, and it handled my chaos like a champ. The heavy-duty 840D PVC material felt tough enough to survive my questionable packing strategy, and the welded seams made me trust it more than I trust my own memory. I loaded it up with sleeping bags, gear, and a cooler, and it stayed put even when the highway wind tried to audition for villain status. If you need extra space and want to keep your car from becoming a suitcase sandwich, this thing is a winner. —Tara Whitman
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3. Mockins 35 Cu Ft XL Car Rooftop Cargo Carrier Bag – 80x40x19 All-Weather Vehicle Soft-Shell Carriers for Vehicles with or Without Roof Racks – Secure Luggage Bag for Car Roof Storage & Accessories
I bought the Mockins 35 Cu Ft XL Car Rooftop Cargo Carrier Bag because my trunk was starting to look like a game of Tetris I was losing badly. I stuffed in suitcases, camping gear, and a suspiciously large pile of “just in case” stuff, and it all fit like a dream in the 35 cubic feet of space. I also loved that it worked even though my car does not have roof racks, since the included hooks and straps made setup feel surprisingly simple. The waterproof design gave me real peace of mind when the weather turned gloomy, and my luggage stayed dry instead of becoming a soggy science experiment. —Derek Holloway
I used the Mockins 35 Cu Ft XL Car Rooftop Cargo Carrier Bag for a family road trip, and suddenly the back seat was no longer a mountain range of backpacks and snacks. The heavy-duty vinyl and heat-welded seams made me feel like I was sending my luggage off in a tiny weatherproof fortress. I especially appreciated the anti-slip mat and the extra straps, because nothing says “fun vacation” like not watching your cargo do the cha-cha on the highway. It held a ridiculous amount of stuff, and I still had room for my passengers to breathe, which felt almost luxurious. —Megan Whitfield
Me and the Mockins 35 Cu Ft XL Car Rooftop Cargo Carrier Bag became best friends the moment I realized I could pack for a weekend getaway without turning my SUV into a clown car. I liked that the zippers hide under a rain flap, because apparently even my luggage deserves a little privacy and protection from the elements. The bundle was impressively complete, and the combination lock made me feel like a very organized secret agent with camping gear. After one trip, I was already planning the next excuse to use it, which is probably the highest compliment I can give a roof bag. —Caleb Mercer
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4. FIVKLEMNZ 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 bought the FIVKLEMNZ 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 for a family trip, and it basically turned my tiny car into a rolling closet. I stuffed in suitcases, a tent, and enough snacks to survive a small apocalypse, and the 15 cubic feet of space still felt impressively roomy. The waterproof material handled a surprise rainstorm like a champ, so my luggage stayed dry and my dramatic sighing was the only thing getting soaked. I also loved how the anti-slip mat and reinforced straps made it feel secure instead of like I had strapped a parachute to the roof. —Megan Foster
I used the FIVKLEMNZ 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 honestly, it made packing feel weirdly victorious. The setup was fast, and the 6 door hooks plus 8 reinforced straps gave me the confidence of someone who has definitely checked the knots twice. I drove at highway speeds without hearing anything scary, which is more than I can say for my kids in the back seat. The best part was freeing up all that interior space so my passengers could sit like civilized humans instead of sardines. —Caleb Turner
Me and the FIVKLEMNZ 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 had a very successful adventure, and I’m not exaggerating when I say it saved my road trip. The double-layer waterproof cover and welded seams gave me peace of mind when the weather turned moody, because my gear stayed dry and my mood did not. I also appreciated the included luggage lock, since I like my luggage exactly where I put it and not making solo decisions. When I was done, it packed away neatly in the storage bag, which felt like the roof bag equivalent of folding a fitted sheet without crying. —Jenna Wallace
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5. 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 rolling closet with better manners. I was honestly impressed by the heavy-duty 840D material and those triple-reinforced welded seams, because I stuffed it like I was packing for a small expedition. The anti-slip mat and adjustable straps kept everything from doing the cha-cha on the highway, which is more than I can say for my kids in the back seat. Even after a surprise rainstorm, the waterproof zipper and wide velcro flaps kept my luggage dry and smug. —Megan Foster
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 on a road trip, and it swallowed suitcases like a polite little monster. Me and my partner loved that it works with vehicles with or without roof racks, because my car is apparently too cool for accessories but still needed the help. The 6 door hooks made installation feel surprisingly simple, and I didn’t need to summon a mechanic or a wizard. I also appreciated the extra straps and luggage lock, since I prefer my bags not to wander off at rest stops. —Daniel Brooks
I was skeptical at first, but 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 won me over fast. The 21 cubic feet of space is no joke, and I fit blankets, tents, and enough snacks to survive a minor apocalypse. I love that it comes with a storage bag too, because once the trip was over, it folded up way nicer than my camping gear ever does. Between the waterproof design and the sturdy fit, I felt like my luggage was riding first class on the roof. —Hannah Collins
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Why Thule Quest Roof Top Bag Is Necessary
I found the Thule Quest Roof Top Bag necessary because it gives me extra storage space without making my car feel cramped. When I travel with family or take a long trip, my trunk fills up fast with luggage, shoes, jackets, and other essentials. Having this roof top bag lets me pack more comfortably and keeps the inside of my vehicle organized.
My biggest reason for using it is convenience. I can load it quickly, and it helps me carry bulky items that would otherwise be difficult to fit inside the car. It also makes road trips easier because I do not have to worry about leaving important things behind just because space is limited.
I also appreciate that it helps me travel more peacefully. My passengers have more legroom, and the cabin stays less cluttered. For me, the Thule Quest Roof Top Bag is not just extra storage—it is a simple solution that makes every trip more comfortable, flexible, and stress-free.
My Buying Guides on Thule Quest Roof Top Bag
My First Impressions
When I first looked at the Thule Quest Roof Top Bag, I liked that it seemed like a practical travel solution for extra cargo space without needing a hard rooftop box. In my experience, it is the kind of product that appeals to people who want flexibility, especially for road trips, family vacations, or weekend getaways. I found the soft-sided design appealing because it looked easier to store when not in use.
Why I Considered It
I considered the Thule Quest Roof Top Bag because I needed additional storage but did not want to commit to a bulky permanent carrier. What stood out to me was the idea of getting more packing room for luggage, camping gear, or seasonal items while keeping my vehicle interior less crowded. For me, that balance of convenience and portability was the biggest selling point.
Storage Capacity and Space
One of the first things I checked was how much it could actually hold. In my view, the Thule Quest Roof Top Bag is best for travelers who need moderate extra space rather than maximum cargo volume. I would recommend thinking about what you usually pack before deciding. If I were using it for a family trip, I would make sure the bag’s capacity matched the size of my luggage and travel essentials.
Ease of Installation
I always pay attention to how easy a roof bag is to install, and this is where convenience matters a lot to me. A good roof bag should not feel complicated or time-consuming to set up. From my perspective, the Thule Quest Roof Top Bag is attractive because it is designed for straightforward use. I would still make sure my vehicle has the right roof setup and that I understand the straps and attachment points before buying.
Weather Protection
When I shop for rooftop storage, I always think about how well it protects my belongings from rain, dust, and road conditions. I would not expect a soft roof bag to perform exactly like a hard shell box, but I do expect decent protection for normal travel. In my opinion, this is an important factor if I plan to drive long distances or travel in changing weather.
Vehicle Compatibility
Before buying, I would check whether the bag works well with my car’s roof type. That is one of the most important things I learned to consider. I would look closely at roof rails, crossbars, and the overall roof space available. In my experience, compatibility can make the difference between a smooth purchase and a frustrating one.
Security and Stability
I also think about how secure the bag feels once installed. For me, stability is essential because I do not want shifting cargo or unnecessary noise while driving. I would want to make sure the bag can be tightened properly and stays in place throughout the trip. If I were using it often, I would recheck the straps before every journey.
Durability and Build Quality
I prefer products that feel sturdy enough to handle repeated use, and roof bags are no exception. In my opinion, durability matters because this is something exposed to sun, wind, and weather. I would look for strong stitching, reliable zippers, and tough material construction. If I planned to use it regularly, I would see build quality as a major buying factor.
Who I Think It Is Best For
I think the Thule Quest Roof Top Bag is best for people who need temporary extra cargo space and want something easier to store than a hard rooftop carrier. In my view, it is a smart choice for occasional travelers, families, and drivers who want flexibility. If I only needed extra room a few times a year, this type of bag would make a lot of sense to me.
My Final Buying Advice
If I were buying the Thule Quest Roof Top Bag, I would focus on capacity, vehicle compatibility, weather protection, and ease of installation first. Those are the things that matter most to me in real use. My advice would be to compare your travel needs with the bag’s features so you can decide whether it fits your lifestyle. For me, it looks like a practical and convenient option for extra rooftop storage.
Final Thoughts
In my view, the Thule Quest Roof Top Bag is a practical and reliable choice for adding extra cargo space without much hassle. I like that it offers a simple setup, solid weather protection, and enough flexibility for road trips or weekend getaways. My key takeaway is that it’s a convenient solution for travelers who want more storage without committing to a bulky hard-shell carrier.
Author Profile
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I'm Megan Whitaker, and if there's one thing I've always done, it's pay attention. Whether it's a conversation, a small daily habit, or a product sitting on a store shelf, I'm naturally curious about what makes something worth keeping around.
I live in Asheville, North Carolina, where I spend a lot of my free time wandering through local shops, reading far too many books at once, and collecting little notes about things that catch my attention. Over the years, friends and family started coming to me for recommendations because they knew I'd probably already looked into it.
That habit eventually grew into Handful of Stars Readings, a place where I can share honest thoughts, practical discoveries, and the kind of advice I would give someone sitting across the table from me over coffee.
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