Truck Bed Cargo Bags
Best Truck Bed Cargo Bags for Dry, Secure Hauling
6 picks compared
9 min read
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The short answerThe best truck bed cargo bag overall is the Outngo 26 Cu Ft Waterproof Bag, which combines large capacity, genuine waterproofing, and secure tie-down straps. For value the AlltoAuto 26 Cu Ft bag is the pick, and the Sailnovo reinforced bag is best for heavy, frequent hauling.
?How we pickedWe compare published specifications, safety certifications and thousands of verified owner reviews, and we do not physically test every unit. Read the full process in our review methodology.
Outngo 26 Cu Ft Waterproof Cargo Bag
★★★★★ 4.6 / 5 Best overall
A heavy-duty 26 cubic-foot waterproof bag that keeps gear dry and secure in an open truck bed. Its capacity, weatherproofing, and tie-down straps make it the best all-round choice.
Capacity 26 cu ftWaterproof YesMount Tie-down strapsBest for Open truck beds
- Large, weatherproof capacity
- Secure tie-downs
- Heavy-duty fabric
- Bulky when full
- Needs anchor points
Best for: Keeping bed cargo dry
AlltoAuto 26 Cu Ft Cargo Bag
★★★★★ 4.5 / 5 Best value
A 26 cubic-foot waterproof cargo bag at a keen price, covering the essentials of dry, strapped storage. The value pick when you want capacity without paying a premium.
Capacity 26 cu ftWaterproof YesMount StrapsBest for Value buyers
- Affordable
- Large capacity
- Weatherproof
Best for: Dry storage on a budget
Sailnovo 26 Cu Ft Heavy-Duty Bag
★★★★★ 4.5 / 5 Best heavy-duty
A rugged 26 cubic-foot bag with reinforced material for those who load heavy or haul often. The tougher build suits work gear and frequent use.
Capacity 26 cu ftBuild ReinforcedWaterproof YesBest for Heavy loads
- Reinforced fabric
- Handles heavy gear
- Weatherproof
- Heavier bag
- Large footprint
Best for: Frequent heavy hauling
26 Cu Ft Cargo Bag with Cargo Net
★★★★★ 4.4 / 5 Best with net
A 26 cubic-foot bag bundled with a cargo net to secure loose items on top. The included net adds versatility for odd-shaped loads that will not fit inside.
Capacity 26 cu ftExtra Cargo net includedWaterproof YesBest for Mixed loads
- Cargo net included
- Secures extra items
- Weatherproof
Best for: Odd-shaped extra cargo
Outngo Heavy-Duty Storage Cargo Bag
★★★★★ 4.5 / 5 Best build
Another well-made Outngo bag focused on durable, waterproof storage with strong seams and straps. A dependable choice if build quality is your priority.
Capacity LargeBuild Strong seamsWaterproof YesBest for Durability
- Solid construction
- Weatherproof
- Secure straps
- Premium of the group
- Bulky
Best for: Long-term durability
AlltoAuto Waterproof Cargo Bag
★★★★★ 4.4 / 5 Best compact option
A waterproof AlltoAuto bag for those who want dependable dry storage without the largest footprint. A tidy pick for lighter, regular loads.
Capacity StandardWaterproof YesMount StrapsBest for Lighter loads
- Weatherproof
- Easy to strap down
- Good value
- Less capacity
- Basic features
Best for: Regular lighter loads
A truck bed cargo bag is the cheap, flexible way to keep gear dry and secured in an open bed, without the cost of a hard cover or toolbox. The best one balances capacity, genuine waterproofing, and secure straps. Below, picks for hauling everything from luggage to work gear.
Why choose a cargo bag
A cargo bag gives you contained, weatherproof storage that you can add or remove in minutes, making it ideal for occasional hauling. It keeps luggage, camping kit, or tools dry and stops loose items sliding around the bed. Compared with a permanent tonneau cover, it is far cheaper and more flexible, though it offers less security since it is soft rather than lockable.
Waterproofing and capacity
The two things that matter most are staying dry and fitting your load. Choose a bag that states it is waterproof, with covered or sealed zips, and check the seams, which are the usual weak points; in heavy rain an inner dry bag adds insurance. Capacity is measured in cubic feet, commonly around 26, and many bags adjust to different bed lengths. Match the volume to what you haul and confirm it fits your bed.
Mounting it securely
Cargo bags strap to the bed\u2019s tie-down anchors, cleats, or D-rings, so make sure your truck has usable points before buying. Cinch every strap tight, because a loose bag can shift or even lift at highway speed. Distribute weight evenly and avoid overfilling so the zip does not strain. Secure, even loading keeps the bag stable and protects both the cargo and your truck.
Living with a cargo bag
Many owners remove and fold the bag away when it is not needed, both for security, since a soft bag can be cut, and to keep it out of the weather when empty. Keep the bed reasonably clean where the bag sits to avoid grit rubbing the liner. Remember the real weight limit is your truck\u2019s payload, not the bag, so load within your vehicle\u2019s rating.
Questions people ask
What is a truck bed cargo bag for?
It is a large, usually waterproof bag that sits in an open truck bed to keep gear dry, contained, and secured with straps. It is a cheap, flexible alternative to a hard tonneau cover or toolbox, ideal for hauling luggage, camping gear, or work equipment that you do not want exposed to rain and road grime.
Are truck bed cargo bags actually waterproof?
Good ones use waterproof fabric and sealed or covered zips to keep contents dry in rain, though seams and zips are the weak points to check. Look for a bag that states it is waterproof rather than just water-resistant, and for heavy rain, keep sensitive items in an inner dry bag as extra insurance.
How do cargo bags attach to the truck bed?
They secure with straps that hook to the bed's tie-down anchors, cleats, or D-rings, holding the bag in place at speed. Before buying, check that your truck has usable anchor points, and always cinch the straps tight. A loose bag can shift or lift on the highway, so secure mounting is essential.
Do I need a specific size for my truck?
Cargo bags are sized by volume, often around 26 cubic feet, and many are adjustable to fit different bed lengths. Match the bag's capacity to how much you haul and check it fits your bed length, whether short, standard, or long. A bag that is too large wastes space; too small limits what you can carry.
Can I leave a cargo bag in the bed all the time?
You can, but for security and longevity many owners remove and store the bag when not in use, since it is soft and can be cut or untied, unlike a locking box. Empty, most bags fold down small for easy storage. If you leave it mounted, keep valuables out of it when parked.
Cargo bag or tonneau cover: which is better?
They serve different needs. A cargo bag is affordable, flexible, and removable, great for occasional hauling and keeping a specific load dry. A tonneau cover protects the whole bed permanently and adds security and aerodynamics but costs more and is fixed. For versatile, budget-friendly storage, a cargo bag wins; for daily bed protection, a cover does.
Will a cargo bag scratch my truck bed?
Most have a soft base that is gentle on a bed liner or paint, but grit trapped underneath can rub over time. Keep the bed reasonably clean where the bag sits, and a bed mat or liner adds protection. Securing the bag so it does not slide around also reduces any rubbing.
How much weight can a truck bed cargo bag hold?
The fabric bags themselves handle substantial loads, but the practical limit is your truck's payload capacity and how well the bag is secured, not just the bag. Distribute weight evenly, do not overfill so the zip strains, and stay within your vehicle's rated payload. For very heavy or sharp items, a hard box may suit better.
The bottom lineSo which one?
Buy the Outngo 26 Cu Ft bag for the best all-round dry, secure storage. Choose the AlltoAuto for value, the Sailnovo for heavy loads, or the net-equipped bag when you need to carry odd-shaped extra cargo.