When choosing an enclosed hitch cargo box that’s weatherproof, I focus on durability, capacity, and ease of access. The top picks this year include the Let’s Go Aero GearSpace Slideout, known for its enormous storage and sliding rear hatch; the BlackBox PRO, offering massive volume suitable for larger gear; and the Thule Santu, a lightweight, bike-friendly option with a low profile. Each excels in different areas but involves tradeoffs like weight or installation complexity. Let’s compare these options to help you find the best weatherproof cargo box for your needs.
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Key Takeaways
- The GearSpace Slideout offers the largest capacity but is heavy and bulky to install.
- The BlackBox PRO provides extensive storage for large gear but has mixed reviews and weight considerations.
- The Thule Santu is easy to handle and ideal for bike transport, though limited to Thule-compatible carriers.
- Weatherproofing varies, with all options providing reliable protection against the elements.
- Ease of access features like slide-outs or swingaway frames improve usability but may add weight or complexity.
| Let’s Go Aero GearSpace Slideout Hitch Cargo Carrier – Light Gray |  | Best Overall for Large Capacity and Weatherproofing | Carry Capacity: 300 lbs | Storage Volume: 34 cubic feet | Hitch Compatibility: 2-inch hitches | VIEW ON AMAZON | See Our Full Breakdown |
| StowAway Max Hitch Cargo Box with Swingaway Frame |  | Best for Versatile Rear Access and Weather Resistance | Capacity: 16 cubic feet | Load Rating: 200 lbs | Material: Impact-resistant polymer | VIEW ON AMAZON | See Our Full Breakdown |
| Let’s Go Aero BlackBox PRO Slide-Out Enclosed Cargo Carrier | 64 cu. ft. |  | Best for Large Gear and RV Compatibility | Dimensions (Inside): 72″L x 32″W x 48″H | Dimensions (Outside): 74″L x 34″W x 50″H | Cargo Capacity: 300 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| Thule Santu Hitch Cargo Box, 99 lb Capacity, 9 cu ft Volume |  | Best for Bike Transport and Easy Handling | Weight Capacity: 99 lbs | Internal Volume: 9 cu ft | Material: Hard-shell | VIEW ON AMAZON | See Our Full Breakdown |
| Thule Arcos Cargo Box |  | Best for Aerodynamic Design and Easy Access | Capacity: 14 cu ft | Compatibility: Requires Thule Arcos Platform | Design: Aerodynamic | VIEW ON AMAZON | See Our Full Breakdown |
| enclosed hitch cargo box weatherproof | Material |
|---|---|
| Let’s Go Aero GearSpace Slideo | Impact-resistant polymer |
| StowAway Max Hitch Cargo Box w | Impact-resistant polymer |
| Let’s Go Aero BlackBox PRO Sli | Polypropylene |
| Thule Santu Hitch Cargo Box | Hard-shell |
| Thule Arcos Cargo Box | — |
More Details on Our Top Picks
Let’s Go Aero GearSpace Slideout Hitch Cargo Carrier – Light Gray
This option stands out for its enormous 34 cubic feet of weather-proof storage and a robust 300 lbs capacity. The slide-out mechanism simplifies rear hatch access, a significant advantage for frequent loading and unloading. Compared to other options, it offers the best combination of capacity and weather protection, though its weight and size mean it’s less suitable for smaller vehicles or those seeking straightforward installation. Its secure locking system and stable hitch connection make it a versatile choice for those prioritizing large gear storage in all weather conditions.
Pros:- Massive 34 cubic feet capacity
- Slide-out feature for easy rear access
- Weather-proof enclosure with secure locks
- Stable hitch connection prevents rattling
Cons:- Heavy, difficult to maneuver or install
- Requires freight shipping and verification
- Bulky size may limit compatibility
Best for: Owners needing maximum storage for luggage, bicycles, or bulky gear, especially with frequent rear access
Not ideal for: Users with smaller vehicles or those preferring lightweight, easy-to-install options
- Carry Capacity:300 lbs
- Storage Volume:34 cubic feet
- Hitch Compatibility:2-inch hitches
- Pod Dimensions:63in L x 28in D x 40in H
- Maximum Load:350 lbs
- Material:Impact-resistant polymer
Our verdict“Best for users who prioritize large, weatherproof storage and can handle its size and weight.”
StowAway Max Hitch Cargo Box with Swingaway Frame
The StowAway Max offers a solid 16 cubic feet of enclosed, weather-resistant storage, supporting up to 200 lbs. Its swingaway frame is a major advantage, allowing full rear access without removing the entire carrier, which simplifies loading and unloading. Compared with larger cargo boxes, it’s easier to handle but still provides ample space for luggage, camping gear, or tools. Its impact-resistant polymer construction ensures weatherproofing, but the weight and limited color options might be drawbacks for some users.
Pros:- Full rear access via swingaway frame
- Weather-resistant, impact-resistant construction
- Secure locking system
- Includes LED safety lights
Cons:- Heavy and potentially challenging to install
- Limited color choices
- Capacity may be insufficient for very large gear
Best for: Campers or travelers needing reliable weatherproof storage with easy rear access
Not ideal for: Those wanting maximum capacity or looking for a lightweight solution
- Capacity:16 cubic feet
- Load Rating:200 lbs
- Material:Impact-resistant polymer
- Includes:Swingaway Frame, Hitch Tighter, LED lights
- Color:Black
- Hitch Compatibility:2-inch hitches
Our verdict“Ideal for users who value convenient rear access and weatherproof durability in a manageable size.”
Let’s Go Aero BlackBox PRO Slide-Out Enclosed Cargo Carrier | 64 cu. ft.
The BlackBox PRO provides a remarkable 64 cubic feet of weatherproof storage, making it suitable for multiple bicycles, large luggage, or bulky equipment. Its slide-out design is a clear advantage, allowing easy rear hatch access without lifting heavy loads. This carrier’s waterproof and secure cover protects gear in all weather, and its compatibility with RVs, trucks, and large SUVs broadens its usability. However, its weight at 195 lbs and mixed customer ratings suggest it may present challenges during installation and use.
Pros:- Large 64 cubic feet capacity
- Slide-out rear access
- Weatherproof and secure cover
- Suitable for RVs, trucks, and SUVs
Cons:- Heavy at nearly 200 lbs, difficult to handle alone
- Mixed customer reviews
- Installation can be complex
Best for: Owners of large vehicles or RV travelers needing extensive, weatherproof storage
Not ideal for: Small vehicle owners or those seeking lightweight, simple solutions
- Dimensions (Inside):72″L x 32″W x 48″H
- Dimensions (Outside):74″L x 34″W x 50″H
- Cargo Capacity:300 lbs
- Carrier Weight:195 lbs
- Material:Polypropylene
- Includes:BlackBox PRO Carrier, Locks, LED lights
Our verdict“Best suited for large-vehicle owners who need maximum weatherproof storage, despite weight and mixed reviews.”
Thule Santu Hitch Cargo Box, 99 lb Capacity, 9 cu ft Volume
The Thule Santu stands out for its convenient 9 cubic feet capacity and 99 lbs weight limit, making it a practical choice for those who need extra space for bikes and gear. Its low-profile, aerodynamic design improves fuel economy and reduces wind noise, while built-in wheels make handling much easier. Compared to larger boxes, it’s less bulky and easier for one person to manage, but it’s limited to Thule bike carriers, which restricts compatibility. Its sturdy, weatherproof shell ensures gear stays protected in all conditions.
Pros:- Ample 9 cu ft of space
- Compatible with Thule bike carriers
- Built-in wheels for easy maneuvering
- Aerodynamic design reduces fuel consumption
Cons:- Limited to Thule bike carrier systems
- Heavy to handle without assistance
- Bulky for small vehicles
Best for: Cyclists and travelers looking for a compact, weatherproof cargo solution compatible with Thule carriers
Not ideal for: Users needing maximum cargo capacity or broader compatibility
- Weight Capacity:99 lbs
- Internal Volume:9 cu ft
- Material:Hard-shell
- Compatibility:Thule Epos, EasyFold XT
- Fits:2-bike and 3-bike versions
- Installation:Hitch-mounted
Our verdict“A practical balance of size, weatherproofing, and ease of handling for Thule users needing bike transport.”
Thule Arcos Cargo Box
The Thule Arcos offers up to 14 cubic feet of weatherproof storage in a sleek, aerodynamic package that helps reduce fuel consumption. Its SlideLock system provides secure locking with clear indicators, simplifying access. Designed to sit low on the vehicle, it’s easier to load and unload, especially when used with the Thule Arcos Platform. However, it requires an additional platform for use, and installing it alone can be challenging for some users. It’s best suited for those who want a compact, secure, and fuel-efficient cargo solution.
Pros:- Provides 14 cu ft of storage
- Aerodynamic design minimizes fuel impact
- Secure SlideLock system with indicators
- Easy to load and unload
Cons:- Requires additional platform for installation
- Challenging to install alone
- Limited capacity compared to larger boxes
Best for: Vehicle owners seeking a stylish, aerodynamic, weatherproof cargo box for smaller loads
Not ideal for: Users needing large capacity or without the Thule platform
- Capacity:14 cu ft
- Compatibility:Requires Thule Arcos Platform
- Design:Aerodynamic
- Locking System:SlideLock
- Installation:One person recommended
- Position:Low profile
Our verdict“A smart choice for those prioritizing fuel efficiency and secure weatherproof storage in a compact form.”
How We Picked
To select these products, I evaluated key factors such as weatherproof construction, storage capacity, ease of access, and compatibility. I looked for options that balance large capacity with weather resistance, and considered customer reviews for real-world performance. I prioritized products with features that improve convenience, like slide-out mechanisms or swingaway frames, but also weighed the potential drawbacks such as weight, installation complexity, and compatibility restrictions. This approach helps identify cargo boxes suited for different vehicle types and user needs.
| enclosed hitch cargo box weatherproof | Material |
|---|---|
| Let’s Go Aero GearSpace Slideo | Impact-resistant polymer |
| StowAway Max Hitch Cargo Box w | Impact-resistant polymer |
| Let’s Go Aero BlackBox PRO Sli | Polypropylene |
| Thule Santu Hitch Cargo Box | Hard-shell |
| Thule Arcos Cargo Box | — |
Factors to Consider When Choosing Enclosed Hitch Cargo Box Weatherproof
Choosing the right weatherproof enclosed hitch cargo box depends on your specific needs for capacity, ease of access, and vehicle compatibility. Larger models like the GearSpace Slideout and BlackBox PRO excel in maximum storage, but their weight and size can complicate installation. Smaller options like the Thule Santu and Arcos focus on ease of handling and aerodynamic efficiency, ideal for those with lighter or smaller vehicles. Consider how often you need rear access, what you’ll carry, and whether your vehicle can handle heavier, larger carriers to make the best choice.Capacity and Size
Assess your storage needs carefully. If you frequently haul large gear, bicycles, or bulky luggage, larger options like the GearSpace Slideout or BlackBox PRO will serve you best. For lighter loads or smaller vehicles, compact models like the Thule Santu or Arcos provide sufficient space without excessive weight or bulk. Remember that bigger carriers may require more robust mounting and might not fit all vehicle types comfortably.
Weatherproofing and Durability
All the options reviewed promise weather-resistant construction, but the level varies. Heavy-duty polymers and impact-resistant shells provide better protection in harsh weather, especially in the largest models designed for outdoor, all-weather use. Make sure the locking mechanisms are secure to prevent water intrusion and theft. Weatherproofing is especially crucial if you plan on leaving gear in the carrier for extended periods or during unpredictable weather.
Ease of Use and Accessibility
Features like slide-out mechanisms or swingaway frames significantly improve convenience, especially for frequent access. Heavier carriers may be challenging to maneuver and install alone, so consider your strength and space. The low-profile designs of models like the Arcos help with loading and unloading, but installation complexity varies, particularly for models requiring additional platforms or freight shipping.
Compatibility and Vehicle Fit
Check your vehicle’s hitch size and compatibility before purchasing. Many larger carriers require a 2-inch hitch, while some specialized models are designed for specific platforms or carriers. If you’re using the cargo box primarily for bikes, ensure compatibility with your existing bike rack system. Consider the weight capacity and mounting options, especially if you have a smaller or lighter vehicle.
Frequently Asked Questions
How do I ensure my cargo box is weatherproof?
To guarantee weatherproofing, look for models with sealed, impact-resistant shells and secure locking systems that prevent water intrusion. Rubber gaskets around doors and access points also enhance waterproofing, especially during heavy rain or snow. Regular inspection and maintenance, such as checking seals and locks, help maintain the weather-resistant integrity over time.
Can I install these cargo boxes myself?
Most models are designed for DIY installation, but the complexity varies. Smaller, low-profile boxes like the Thule Arcos and Santu are generally easier to install alone, especially if you’re comfortable with basic tools. Larger, heavier carriers like the GearSpace Slideout and BlackBox PRO may require assistance due to their weight and size, and some might need freight shipping or professional setup for safe mounting.
What should I consider when choosing a capacity?
Your choice should reflect your typical cargo. If you often carry bicycles or bulky gear, opt for larger models like the GearSpace or BlackBox PRO. For occasional use or lighter loads, a smaller capacity like the Thule Santu or Arcos is sufficient and easier to manage. Overestimating capacity can lead to unnecessary weight and difficulty, while underestimating might limit your cargo options.
Are slide-out features worth it?
Slide-out mechanisms significantly improve rear access, making loading, unloading, and gear management easier. They are especially beneficial for larger carriers, where reaching into the cargo space can be cumbersome. However, slide-outs add complexity and weight, so if you prefer simplicity or have a smaller vehicle, a fixed design might be more suitable.
How do I maintain weatherproofing over time?
Regular maintenance includes inspecting rubber seals, locking mechanisms, and hinges for signs of wear or damage. Cleaning the exterior to remove dirt and debris helps preserve the integrity of weatherproofing materials. If you notice any water leaks or damaged seals, replace or repair them promptly to keep your gear protected in all weather conditions.
Conclusion
For buyers with large vehicles or those requiring maximum weatherproof storage, the GearSpace Slideout and BlackBox PRO are excellent choices, despite their size and weight. Smaller vehicle owners or those prioritizing ease of installation and handling will find the Thule Santu or Arcos better suited, particularly for lighter loads or bike transport. Ultimately, the ideal cargo box depends on your specific vehicle and cargo needs, balancing capacity with convenience.
