Searching for the best enclosed hitch cargo box waterproof can be challenging, as options vary widely in size, durability, and ease of use. The StowAway Max Hitch Cargo Box stands out as the overall best for its rugged build and secure locking system. For those seeking budget-friendly options, the Mockins 15 CuFt Weatherproof Cargo Carrier Bag offers reliable water resistance at a lower price point. Meanwhile, the Sailnovo Waterproof Hitch Cargo Carrier Soft Shell Bag provides ample space with flexible storage. These choices highlight the main tradeoffs in this category: higher capacity and durability often come with increased cost and weight. Keep reading for a detailed breakdown of these options and how they compare.
Key Takeaways
- The top-ranked cargo boxes combine robust waterproofing with sturdy mounting systems for peace of mind on long trips.
- Soft-shell bags tend to be more affordable and lighter but may offer less protection against severe weather compared to hard-shell boxes.
- Size and capacity vary significantly; consider your cargo volume needs before choosing a model.
- Locking features are essential for security, especially if leaving the cargo box unattended.
- Ease of installation and access can differ, impacting overall convenience during use.
| Sailnovo Waterproof Hitch Cargo Carrier Soft Shell Bag, 20 Cubic Feet |  | Best for Large, Flexible Waterproof Storage | Capacity: 20 cubic feet | Dimensions: 60″ x 24″ x 24″ | Material: 1000D 3-layer high-density PVC | VIEW LATEST PRICE | See Our Full Breakdown |
| Buyers Products Poly Hitch Mounted Cargo Carrier with Polyethylene Chest |  | Best for Secure, Lockable Waterproof Storage | Dimensions: 23x51x26 inches | Material: High-density polyethylene, steel | Weight Capacity: 200 lbs | VIEW LATEST PRICE | See Our Full Breakdown |
| Mockins 15 CuFt Weatherproof Trailer Hitch Cargo Carrier Bag with 4 Packing Cubes |  | Best for Organized, Flexible Hitch Storage | Dimensions: 48″ x 18″ x 31″ | Capacity: 15 cubic feet | Packing Cubes Size: 22″ x 15″ x 15″ | VIEW LATEST PRICE | See Our Full Breakdown |
| MaxxHaul 70209 Soft Shell Cargo Carrier Bag for Hitch Mount Cargo Rack, 47 inch, Water Resistant, Black |  | Best Lightweight and Foldable Water-Resistant Cargo Bag | Material: PVC with polyester reinforcement and UV coating | Dimensions: 47 inches long x 20 inches wide x 20 inches high | Volume Capacity: up to 11 cubic feet | VIEW LATEST PRICE | See Our Full Breakdown |
| Mockins 25 Cu Ft Large Trailer Hitch Cargo Carrier Bag, Waterproof 60″x24″x31″ |  | Best Large Capacity Waterproof Cargo Bag for Road Trips | Capacity: 25 cu ft | Dimensions: 60″ x 24″ x 31″ | Material: Waterproof vinyl | VIEW LATEST PRICE | See Our Full Breakdown |
| StowAway Max Hitch Cargo Box with Swingaway Frame – Ivory |  | Best Enclosed Cargo Box with Full Rear Access | Capacity: 16 cubic feet | Load Rating: 200 lbs | Material: Impact-resistant polymer | VIEW LATEST PRICE | See Our Full Breakdown |
| Mockins 25 CuFt All-Weather Trailer Hitch Cargo Carrier Bag, Waterproof Truck Bed Storage & Cargo Bag |  | Best Heavy-Duty Waterproof Storage for Trucks and SUVs | Capacity: 25 cubic feet | Dimensions: 60″ x 24″ x 31″ | Material: Waterproof vinyl | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
Sailnovo Waterproof Hitch Cargo Carrier Soft Shell Bag, 20 Cubic Feet
The Sailnovo Soft Shell Bag offers an expansive 20 cubic feet capacity, ideal for outdoor trips where flexibility and waterproofing are priorities. Its 3-layer PVC construction provides superior water resistance, surpassing rigid boxes like the StowAway Max in flexibility and ease of storage. The adjustable straps, reinforced seams, and built-in lock make it secure and stable, though the lack of a specified weight capacity warrants caution when fully loaded. It’s well-suited for road trips and camping where gear needs to stay dry. However, its compatibility depends on rack size, and it may require support underneath when heavily loaded, reflecting a tradeoff between capacity and stability.
Pros:- Large 20 cubic feet capacity
- Waterproof 3-layer PVC material
- Secure with lock and reflective safety strips
- Easy to load with side handles
Cons:- No specified weight capacity, caution needed
- May require support underneath when fully loaded
Best for: Buyers seeking high-capacity, waterproof, and flexible cargo solutions for outdoor adventures and road trips.
Not ideal for: Users who prefer rigid, lockable enclosures or need a lightweight option, as this bag can be bulky and less stable when fully loaded.
- Capacity:20 cubic feet
- Dimensions:60″ x 24″ x 24″
- Material:1000D 3-layer high-density PVC
- Compatibility:Fits most hitch carriers
Bottom line: An excellent flexible waterproof storage option for travelers who need maximum volume and weather protection.
Buyers Products Poly Hitch Mounted Cargo Carrier with Polyethylene Chest
The Buyers Products Cargo Carrier combines a durable polyethylene chest with a steel frame, offering robust, lockable weatherproof storage. Its 23x51x26 inch dimensions and 200 lbs capacity make it suitable for tools, gear, and supplies that require security and protection from the elements. Compared to soft-sided options like the Mockins Cargo Bag, this model provides a more rigid and secure enclosure, especially important for valuable equipment. However, its weight and fixed capacity limit flexibility, and padlocks are sold separately. It’s ideal for users who prioritize security and weather resistance in a rugged, easy-to-install package, especially on trucks and RVs.
Pros:- Waterproof, weather-resistant construction
- Secure lockable lid with padlock hasps
- Easy to install in 2-inch receiver hitch
- Large 17 cubic feet storage capacity
Cons:- Padlocks sold separately
- Heavy when fully loaded
- Limited to 200 lbs capacity
Best for: Buyers needing rugged, lockable, waterproof storage for tools and gear on trucks, trailers, or RVs.
Not ideal for: Those seeking lightweight, flexible, or soft-sided cargo solutions, as this unit is heavier and more rigid.
- Dimensions:23x51x26 inches
- Material:High-density polyethylene, steel
- Weight Capacity:200 lbs
- Hitch Size:2 inches
Bottom line: A dependable, secure waterproof cargo solution for heavy-duty outdoor use on trucks and RVs.
Mockins 15 CuFt Weatherproof Trailer Hitch Cargo Carrier Bag with 4 Packing Cubes
The Mockins Cargo Carrier Bag offers 15 cubic feet of weatherproof, soft-sided storage, making it suitable for travelers who value organization and flexibility. Its included four packing cubes help keep gear sorted, a feature not found in rigid boxes like the StowAway Max. The abrasion-resistant vinyl and reinforced seams ensure durability against the elements, but its bulkiness and weight can make storage and handling a challenge. Proper installation is necessary to prevent shifting during transit, and it’s best suited for those who prefer a soft, adaptable enclosure over a rigid box. Compared to the waterproof bag, rigid carriers might offer more security for valuable items, but with less flexibility.
Pros:- Waterproof and weather-resistant
- Includes 4 packing cubes for organization
- Durable materials with reinforced seams
- Secure straps and lockable features
Cons:- Bulky when stored away
- Heavy when fully loaded
- Requires careful installation to prevent movement
Best for: Buyers looking for organized, weatherproof, and flexible cargo storage for road trips and camping, especially those who prefer packing cubes.
Not ideal for: People needing a rigid, lockable, high-security enclosure, as the bag’s soft sides provide less protection against theft and impact.
- Dimensions:48″ x 18″ x 31″
- Capacity:15 cubic feet
- Packing Cubes Size:22″ x 15″ x 15″
- Material:Abrasion-resistant vinyl
Bottom line: A flexible, organized waterproof option ideal for travelers who prioritize packing efficiency and weather protection.
MaxxHaul 70209 Soft Shell Cargo Carrier Bag for Hitch Mount Cargo Rack, 47 inch, Water Resistant, Black
The MaxxHaul 70209 stands out for its lightweight, foldable design that makes it easy to store when not in use, making it ideal for those who need flexible storage options. Unlike the larger Mockins 25 Cu Ft bags, this soft-shell carrier offers a more compact and portable solution, though it sacrifices some capacity and ruggedness. Its PVC material with welded seams provides effective water resistance, but the zippers are less robust and may struggle with prolonged heavy water exposure. This pick is perfect for occasional outdoor trips where storage flexibility and ease of handling are priorities. However, it might not be suitable for heavy-duty, all-weather use or for hauling very bulky gear regularly.Pros:- Lightweight and easy to fold for storage
- Water-resistant with welded seams
- Secure straps keep cargo stable
Cons:- Zippers may wear out with heavy water exposure
- Limited color options (only black)
Best for: Casual campers or travelers needing a lightweight, portable water-resistant cargo solution
Not ideal for: Heavy-duty users or those needing maximum waterproof protection for rugged, long-term outdoor use
- Material:PVC with polyester reinforcement and UV coating
- Dimensions:47 inches long x 20 inches wide x 20 inches high
- Volume Capacity:up to 11 cubic feet
- Straps:8 polypropylene straps, 1-1/2 inches wide
- Features:Welded seams, heavy-duty zipper, water resistant, foldable
Bottom line: This soft shell bag is best suited for users prioritizing portability and light outdoor use over maximum durability.
Mockins 25 Cu Ft Large Trailer Hitch Cargo Carrier Bag, Waterproof 60″x24″x31″
The Mockins 25 Cu Ft Cargo Carrier offers an expansive 25 cubic feet of waterproof storage, making it ideal for extended trips or camping gear. Compared with the StowAway Max, it provides more capacity and a more flexible setup, though it’s less streamlined and may be bulkier to store. Its abrasion-resistant vinyl and waterproof seams ensure your belongings stay dry, even in heavy rain. The inclusion of straps, a lock, and a carry case enhances security and transport convenience. This bag makes sense for those who prioritize large-volume waterproof storage and are willing to handle a bigger, less portable unit. For frequent travelers or those with limited garage space, its size could be a drawback.Pros:- Massive 25 cubic feet capacity
- Waterproof vinyl construction with reinforced seams
- Includes lock, straps, and carry case for security and convenience
Cons:- Bulky to store when not in use
- Requires proper installation to prevent movement
Best for: Long-distance travelers or campers needing maximum waterproof capacity
Not ideal for: Urban users with limited storage space or those who prefer compact, lightweight solutions
- Capacity:25 cu ft
- Dimensions:60″ x 24″ x 31″
- Material:Waterproof vinyl
- Includes:Straps, lock, carry case
- Warranty:10 years
Bottom line: This bag is ideal for those who need extensive waterproof storage and can accommodate its size and weight.
StowAway Max Hitch Cargo Box with Swingaway Frame – Ivory
The StowAway Max stands out for its swingaway frame, offering full rear access without removal, which makes loading and unloading more convenient than the typical cargo bags like Mockins or MaxxHaul. Its 16 cubic feet of space balances capacity with ease of handling, though it’s smaller than the 25 cu ft options. Built from impact-resistant polymer, it provides solid weather resistance and durability. However, its weight can be a challenge for some users during installation or removal, and its limited color choice might not suit every aesthetic. This option excels for users who want secure, enclosed storage with simple access, though it’s less suitable if maximum volume is needed.Pros:- Full rear swingaway access for easy loading
- Weather-resistant impact polymer construction
- Secure locking features
Cons:- Heavy to install or reposition for some users
- Limited color options
Best for: Campers or outdoor enthusiasts seeking secure, weather-resistant storage with easy rear access
Not ideal for: Those needing maximum volume or a lightweight, portable cargo solution
- Capacity:16 cubic feet
- Load Rating:200 lbs
- Material:Impact-resistant polymer
- Made in:USA
Bottom line: This cargo box is ideal for users valuing easy rear access and weather protection over maximum capacity.
Mockins 25 CuFt All-Weather Trailer Hitch Cargo Carrier Bag, Waterproof Truck Bed Storage & Cargo Bag
The Mockins 25 Cu Ft Cargo Carrier Bag is designed for rugged outdoor use, offering a large, 25 cubic feet waterproof capacity suitable for trucks, SUVs, and trailers. Unlike the soft-shell MaxxHaul, this vinyl bag provides a more rugged, weatherproof shell with reinforced seams and a secure buckle system, making it a better choice for severe weather conditions. Its size and features make it ideal for those who need maximum capacity without sacrificing waterproofing, but the bulkiness can be a challenge for storage when not in use. This bag makes the most sense for users who prioritize durability and waterproof integrity over ease of handling or compactness.Pros:- Large 25 cu ft capacity
- Rugged waterproof vinyl with reinforced seams
- Buckle straps and lock for secure transport
Cons:- Bulky for storage when not in use
- Requires proper mounting to prevent movement
Best for: Heavy-duty outdoor enthusiasts needing large, waterproof cargo for trucks or trailers
Not ideal for: Urban drivers with limited storage space or those seeking lightweight, portable bags
- Capacity:25 cubic feet
- Dimensions:60″ x 24″ x 31″
- Material:Waterproof vinyl
- Features:Reinforced seams, Velcro flap, buckle straps, lock, side handles
- Warranty:10-year limited
Bottom line: This cargo bag is perfect for users demanding maximum waterproof protection and durability in rugged outdoor environments.
How We Picked
These products were evaluated based on their waterproof integrity, build quality, ease of installation, capacity, and security features. I prioritized models with proven water-resistant materials and reliable sealing mechanisms, ensuring they can withstand heavy rain and road spray. Durability and ease of access were also key, along with value for money in relation to capacity and features. The ranking reflects a balance between performance, user convenience, and price, aiming to guide buyers toward options that best meet different needs and budgets.Factors to Consider When Choosing Best Enclosed Hitch Cargo Box Waterproof
Choosing the best enclosed hitch cargo box waterproof involves understanding several important factors that influence performance and usability. Beyond just waterproofing, you’ll want to consider capacity, security features, installation ease, and material durability. Making the right choice depends on your specific needs, whether that’s frequent use, long trips, or budget constraints. Being aware of these broader considerations helps avoid common mistakes like overpaying for features you’ll never use or selecting a size that doesn’t fit your vehicle or cargo.Waterproofing and Seal Quality
The core feature of any enclosed cargo box for outdoor use is its ability to keep contents dry. Look for models with high-quality sealing mechanisms, such as rubber gaskets and weather-resistant locks. Soft-shell bags may use water-resistant fabrics but generally offer less protection against driving rain or submersion, making them better suited for short trips or dry climates. Hard-shell boxes typically provide superior waterproofing, especially when constructed from durable, sealed polyethylene or ABS materials.Size and Capacity
Determining the right size depends on your cargo volume needs. Larger capacity models are ideal for bulky gear or multiple bags, but they can add weight and affect vehicle handling. Conversely, smaller boxes are easier to install and manage but might limit what you can carry. Always measure your vehicle’s hitch receiver and available space to ensure compatibility. Overestimating capacity can lead to unnecessary expense and difficulty during installation.Security Features
A cargo box’s lock system is vital if you plan to leave your gear unattended. Look for models with keyed locks or even integrated locking mechanisms that resist tampering. Soft-shell options often rely on zipper locks, which are less secure, so they’re better for short-term use. Hard-shell boxes frequently include more robust locking systems, making them suitable for securing valuable or sensitive items during extended stops.Material Durability
Materials like high-density polyethylene or reinforced plastics stand out for their resistance to impact, UV rays, and extreme weather. Soft-shell bags, typically made from water-resistant fabrics, are lighter and more flexible but may wear out faster over time. Consider your climate and usage frequency when choosing between these options. Investing in a durable material can extend the lifespan of your cargo solution, especially if you regularly encounter rough roads or harsh weather.Ease of Installation and Access
A cargo box should be easy to mount securely without requiring special tools or skills. Quick-release or swing-away mounting systems add convenience, particularly for frequent use. Accessibility also matters; look for models with wide openings, easy-to-use latches, and positions that don’t interfere with vehicle doors or tailgates. Poorly designed access can turn a simple trip into a frustrating experience, so prioritize user-friendly features.Frequently Asked Questions
Can I leave my waterproof cargo box outside all year round?
Yes, most high-quality waterproof cargo boxes are designed for year-round outdoor use, made from UV-resistant and impact-resistant materials. However, regular maintenance, such as cleaning and checking seals for wear, helps prolong their lifespan. For extreme climates, choosing a model with reinforced seals and durable construction is advisable to ensure it remains waterproof and in good condition over time.
Are soft-shell cargo bags as waterproof as hard-shell boxes?
Soft-shell cargo bags can be water-resistant and protect against light rain or splashes, but they generally do not provide the same level of waterproofing as hard-shell boxes. They often rely on water-resistant fabrics and zippers, which may not prevent water ingress during heavy rain or when driving at high speeds. For critical or valuable cargo, hard-shell options tend to offer more reliable protection against severe weather.
How do I ensure my cargo box stays secure during long trips?
To maximize security, select a model with a robust locking system, ideally with keyed locks or integrated security features. Properly installing the box using the manufacturer’s instructions is crucial to prevent theft or accidental detachment. Additionally, placing the cargo box in well-lit, visible areas and avoiding leaving valuables inside can deter theft. Regularly inspecting locks and mounting hardware during trips adds an extra layer of safety.
What’s the best material for a durable, waterproof hitch cargo box?
High-density polyethylene (HDPE) and reinforced ABS plastics are among the best materials for durability and waterproofing. These materials resist impact, UV damage, and harsh weather conditions. Soft-shell bags, while lighter and flexible, typically use water-resistant fabrics that may degrade faster over time, especially in extreme conditions. Choosing a hard-shell box with high-quality sealing features ensures longer-lasting protection for your cargo.
Is it better to choose a soft or hard-sided waterproof cargo carrier?
The choice depends on your specific needs. Soft-sided carriers are generally more affordable, lighter, and easier to store when not in use, making them suitable for occasional trips or shorter distances. Hard-sided carriers, however, offer superior waterproofing, security, and impact resistance, ideal for frequent use or carrying valuable items. Consider your climate, cargo security needs, and how often you plan to use the carrier when making your decision.
Conclusion
For most buyers, the StowAway Max Hitch Cargo Box offers an excellent balance of waterproofing, security, and durability, making it the best overall choice. Those on a tighter budget or with smaller cargo needs might prefer the Mockins 15 CuFt Weatherproof Cargo Carrier Bag for its affordability and lightweight design. If you seek premium, long-lasting protection, the Sailnovo Waterproof Hitch Cargo Carrier Soft Shell Bag or similar models provide flexible storage with water resistance. New users should focus on models with straightforward installation and locking features, while frequent travelers might prioritize larger capacity and reinforced waterproof seals. Carefully match your specific use case with these features to find the best fit.
