We researched and compared the top cargo boxes for the Subaru Crosstrek, evaluating manufacturer specifications, published safety standards (including FMVSS and TUV certification where applicable), and aggregated owner feedback from hundreds of reviews. Our goal is to help you choose a box that fits your Crosstrek’s roof, cargo needs, and budget without compromising safety or ease of use. Below are our seven top picks, each with honest pros, cons, and limitations.
| Photo | Product | Score | Buy |
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Yakima SkyBox Carbonite 16 Best Overall 16 cubic feet capacity, 55 lbs weight, fits Crosstrek crossbars with included hardware |
9.2 | 🛒 Check Price |
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Thule Motion XT XL Runner Up 18 cubic feet capacity, 53 lbs weight, Power-Click mounting system |
8.9 | 🛒 Check Price |
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SportRack Vista XL Rear Opening Best Value 15 cubic feet capacity, 38 lbs weight, rear opening only |
8.5 | 🛒 Check Price |
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INNO Shadow 16 Compact & Lightweight 16 cubic feet capacity, 33 lbs weight, low-profile design |
8.1 | 🛒 Check Price |
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Rola 59002 Vortex Budget Pick 12 cubic feet capacity, 32 lbs weight, rear opening |
7.8 | 🛒 Check Price |
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Keeper 85004 Aero Aerodynamic Design 13 cubic feet capacity, 35 lbs weight, aerodynamic shell |
7.5 | 🛒 Check Price |
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Rhino-Rack MasterFit 18 Maximum Capacity 18 cubic feet capacity, 48 lbs weight, fits most crossbars |
7.2 | 🛒 Check Price |
1. Yakima SkyBox Carbonite 16: Best Overall
In our evaluation, the Yakima SkyBox Carbonite 16 stands out as the best all-around cargo box for the Subaru Crosstrek. Based on owner feedback and the spec sheets, its aerodynamic shape minimizes wind noise and fuel economy loss, a common complaint with bulkier boxes. The dual-sided opening is a practical feature when parked curbside, and the torque-limiting knobs give peace of mind that the box is correctly tightened without guesswork.
However, it is one of the pricier options, and some owners note that the 16 cubic foot capacity may feel tight for a family of four on a week-long trip. If you need maximum volume and are on a tighter budget, consider one of our other picks. The SkyBox is best for Crosstrek owners who prioritize quality, ease of use, and a sleek look.
- Aerodynamic design reduces wind noise and drag, improving fuel efficiency on long trips.
- Dual-sided opening allows easy access from either side of the vehicle.
- Integrated mounting system with torque-limiting knobs ensures secure attachment without over-tightening.
Pros: Excellent build quality and weather sealing.; Low profile fits Crosstrek's roof without blocking sunroof.
Cons: Higher price point compared to similar capacity boxes.
2. Thule Motion XT XL: Runner Up
The Thule Motion XT XL is a close runner-up, praised in owner feedback for its robust construction and generous 18 cubic feet of space. We compared its specs to the Yakima and found that while it offers more volume, it is also heavier. The Power-Click mounting system is secure but requires careful alignment on some Crosstrek factory crossbars. The automatic locking feature is a nice touch for security.
One real limitation is that the box is long and may overhang the roof slightly on a Crosstrek, potentially increasing wind noise at highway speeds. If you frequently drive in strong crosswinds, consider a shorter box. The Motion XT XL is ideal for those needing maximum cargo space and who don’t mind a bit of extra weight.
- Dual-side opening with lid stays open via gas springs for easy loading.
- SlideLock locking system automatically locks the lid when closed.
- Max load 165 lbs, compatible with most Crosstrek crossbars.
Pros: Very durable ABS shell with textured finish resists scratches.; Sleek design complements Crosstrek's styling.
Cons: Heavier than some competitors, may affect fuel economy slightly more.; Installation can be finicky on non-Thule crossbars.
3. SportRack Vista XL Rear Opening: Best Value
For budget-conscious Crosstrek owners, the SportRack Vista XL offers excellent value. We researched owner feedback and found that its lightweight design is a major plus for those who need to frequently remove the box. The rear opening is handy when you are loading from the back of the car, but less so if you need side access. The universal mounting system works reliably with Crosstrek factory crossbars.
However, the build quality is not as premium as Thule or Yakima; some owners note minor flex in the shell at highway speeds. Also, the latch may require some lubrication to operate smoothly. If you are on a tight budget and primarily use the box for occasional road trips, this is a solid choice. But if you plan to use it heavily, you might want to invest in a more durable model.
- Rear-opening design allows easy access from the back of the vehicle, convenient for tailgate loading.
- Lightweight construction at 38 lbs makes it easy to mount and remove.
- Universal mounting system fits most crossbars, including Crosstrek factory bars.
Pros: Very affordable for the capacity.; Lightweight and easy to handle solo.
Cons: Rear opening only, less convenient when parked in tight spots.; Some owners report latch mechanism can be stiff initially.
4. INNO Shadow 16: Compact & Lightweight
The INNO Shadow 16 is a great option for Crosstrek owners who want a lightweight box that is easy to handle. Based on our analysis of owner reviews, its low profile is a standout feature, allowing you to still use your sunroof. The quick-mount brackets make installation a breeze. However, the lid doesn’t have gas struts to hold it open, which is a minor inconvenience when loading.
Durability is a concern: some owners in colder climates reported cracks after a few seasons. Also, the safety rating is slightly lower due to the lack of a reinforced locking system. This box is best for light, occasional use and for those who prioritize weight savings over ruggedness. If you need a box for frequent heavy loads or extreme weather, look elsewhere.
- Ultra-lightweight at 33 lbs, one of the lightest in its class.
- Low profile design reduces wind resistance and preserves sunroof access.
- Tool-free installation with quick-mount brackets.
Pros: Very easy to mount and remove by one person.; Affordable and fits Crosstrek well without overhang.
Cons: Lid does not stay open on its own; requires prop rod.; Less durable construction; may crack under extreme cold or impact.
5. Rola 59002 Vortex: Budget Pick
The Rola 59002 Vortex is the most budget-friendly cargo box we evaluated. It offers a modest 12 cubic feet of space, which is enough for a couple of duffel bags but not a full family’s luggage. Owner feedback indicates that it is fine for occasional short trips, but the plastic shell feels less robust than competitors. Some users reported water ingress during heavy downpours, so we advise using dry bags for sensitive items.
Safety features are minimal; the locking mechanism is basic. This box is best for Crosstrek owners who need a very cheap solution for rare use and are willing to accept compromises in durability and weather protection. We recommend skipping it if you plan to use the box frequently or for valuable cargo.
- Smallest and most affordable option, ideal for minimal extra storage.
- Rear opening with gas struts for easy lift.
- Compatible with Crosstrek crossbars but may require adapter for some.
Pros: Very low price point for a cargo box.; Lightweight and easy to store when not in use.
Cons: Small capacity (12 cu ft) limits usefulness for longer trips.; Build quality is basic; reported water leaks in heavy rain.
6. Keeper 85004 Aero: Aerodynamic Design
The Keeper 85004 Aero is a mid-range option that focuses on aerodynamics. We compared its design to others and found that it does produce less wind noise than many budget boxes, but it is not as quiet as premium brands. Owner feedback highlights that the mounting system may need occasional adjustment to prevent rattling. The 13 cubic foot capacity is adequate for two people’s luggage but may be tight for a family.
Durability is average; some owners noted fading after a few years of sun exposure. If you want a quieter ride without spending top dollar, this could work, but we suggest checking the tightness of the bolts before every trip. For heavy or frequent use, we recommend spending a bit more on a Thule or Yakima.
- Aerodynamic shape intended to reduce drag and wind noise.
- Dual-side opening with gas struts.
- Includes universal mounting kit for most crossbars.
Pros: Quieter at highway speeds compared to budget boxes.; Decent build quality for the price.
Cons: Mounting hardware can loosen over time; requires periodic retightening.; Not as spacious as similarly priced alternatives.
7. Rhino-Rack MasterFit 18: Maximum Capacity
The Rhino-Rack MasterFit 18 is the largest box on our list, offering 18 cubic feet of storage. Based on owner feedback, it is great for hauling bulky gear like camping equipment, but the size comes with drawbacks. On a Crosstrek, the box overhangs the roof edges, which can increase wind noise and even cause the rear hatch to hit the box if not positioned carefully. The weight (48 lbs) makes it a two-person job to install.
Value is lower because the large size may be excessive for most Crosstrek owners, and the mounting system can be fiddly. Safety-wise, the overhang could be a concern in strong crosswinds. We recommend this only if you absolutely need the maximum capacity and have help for installation. Otherwise, a smaller box will be more practical.
- Large 18 cu ft capacity for bulky items like camping gear.
- Dual-side opening with gas struts.
- Reinforced ABS construction for durability.
Pros: Spacious interior can fit large items like coolers and tents.; Sturdy build with good weather sealing.
Cons: Heavy and bulky; difficult for one person to mount.; May overhang Crosstrek roof, causing increased wind noise and potential clearance issues.
Frequently Asked Questions
Will a cargo box fit my Subaru Crosstrek with factory crossbars?
Most cargo boxes are compatible with factory crossbars, but you must check the box’s mounting system. Many boxes come with universal brackets that fit square, round, and aerodynamic bars. However, some premium boxes like Thule and Yakima may require specific adapters for factory bars. Always verify the mounting kit included or purchase the correct adapter.
How much weight can I safely put on my Crosstrek's roof with a cargo box?
The Subaru Crosstrek has a dynamic roof load limit of 150 lbs (including the weight of the cargo box and its contents). Most cargo boxes weigh between 30-55 lbs, so you can typically load 95-120 lbs of gear. Exceeding this limit can affect handling and safety. Always consult your owner’s manual and the cargo box’s specifications.
Will a cargo box affect my Crosstrek's gas mileage?
Yes, a cargo box increases aerodynamic drag, which can reduce fuel economy by 5-15% depending on the box’s shape and size. Aerodynamic boxes like the Yakima SkyBox and Thule Motion XT minimize the impact. Driving at highway speeds (65+ mph) will see the biggest drop. Some owners report a 2-3 mpg decrease on average.
Can I open the rear hatch with a cargo box installed?
It depends on the box’s position and the Crosstrek’s roof length. If the box is mounted too far back, the hatch may hit the box when opened. Most boxes are designed to be positioned forward enough to allow full hatch opening. We recommend test-fitting before a trip. Some boxes have a rear-opening design that can help avoid interference.
How do I secure a cargo box to prevent theft?
Most cargo boxes come with integrated locks that secure the lid and mounting system. For added security, you can use cable locks or padlocks through the mounting points. Some owners also use locking hitch pins for crossbar attachments. Always lock the box when unattended and avoid storing valuables in plain sight.
Our Verdict
After researching and comparing specifications, safety standards, and owner feedback, our top pick is the Yakima SkyBox Carbonite 16 for its excellent balance of aerodynamics, build quality, and ease of use on the Subaru Crosstrek. The Thule Motion XT XL is a close runner-up if you need more capacity and are willing to accept a slightly heavier box. For budget-minded buyers, the SportRack Vista XL offers good value, but be aware of its rear-opening limitation. Choose based on your priorities: cargo volume, budget, or weight.
