Looking Beyond the MoNiBloom Rooftop Cargo Box Series? 6 Alternatives Worth a Look
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The monibloom rooftop cargo box series alternatives offer practical options for drivers who need more volume or different mounting styles. While the MoNiBloom 13 Cu Ft Hard Shell Roof Box provides secure, weather-protected storage for small loads, its 13 cubic feet capacity may limit larger trips. Its 56.3-inch length and 41-pound weight suit standard roof racks, but buyers seeking higher capacity or universal fit for cars without rails might prefer other designs. The alternatives were chosen because their specs overlap with the original, ensuring compatibility while offering distinct advantages in size or flexibility.
This list covers 6 alternatives worth a look, ranging from soft roof bags to dual-side hard shells. You might prioritize waterproofing, side access, or lightweight portability over the MoNiBloom’s rigid hard shell construction. Each option addresses specific needs, such as the FIVKLEMNZ 30 Cubic Feet Roof Bag for high-capacity storage or the Thule Pulse 2 L for heavy loads. By comparing these specifications, you can identify the best fit for your vehicle and cargo requirements without compromising on security or ease of use.
How these alternatives compare
MeeFar 15 cu ft Roof Bag
The MeeFar 15 cu ft Roof Bag offers 2 cubic feet more capacity than the MoNiBloom 13 Cu Ft model. It measures 44 inches long and 34 inches wide, fitting vehicles without permanent roof racks. The soft shell design allows for compact storage when empty. You sacrifice the rigid hard shell protection and integrated locking mechanism found on the MoNiBloom. This option suits drivers who need extra volume and universal fitment over weather-tight security. It is a practical choice for small loads where rack installation is not possible.
FIVKLEMNZ 30 Cubic Feet Roof Bag
The FIVKLEMNZ 30 Cubic Feet Roof Bag doubles the storage volume of the MoNiBloom 13 Cu Ft box. It features a large 60-inch by 60-inch footprint with a 20-inch height. This soft bag is designed for vehicles without roof racks, using straps for mounting. You give up the aerodynamic hard shell and the secure lock system of the MoNiBloom. The soft material is less durable against road debris. This alternative is ideal for travelers needing high capacity and full waterproofing who do not require a rigid structure or integrated security features.
Sailnovo 21 cu ft Soft Roof Bag
The Sailnovo 21 cu ft Soft Roof Bag provides 8 cubic feet more space than the MoNiBloom 13 Cu Ft model. It measures 9.84 inches wide and 13.8 inches high when packed. This soft shell is lightweight and compressible for easy storage. You lose the rigid protection and weather resistance of the MoNiBloom hard shell. It lacks an integrated lock, relying on external security measures. This option suits buyers who prioritize capacity and portability over aerodynamic efficiency and rigid protection. It is best for occasional cargo needs on cars without rails.
RoofPax 19 cu ft Polyester Roof Bag
The RoofPax 19 cu ft Polyester Roof Bag offers 6 cubic feet more volume than the MoNiBloom 13 Cu Ft box. It measures 47.2 inches long and 35.4 inches wide. This soft bag fits vehicles without roof racks using universal straps. You sacrifice the secure, lockable hard shell design of the MoNiBloom. The soft material is less protective against impacts and weather. This alternative is ideal for drivers who need flexible storage for irregularly shaped gear. It suits those who lack roof racks and prioritize capacity over the security and durability of a hard shell enclosure.
Asinking 20 cu ft Waterproof Roof Bag
The Asinking 20 cu ft Waterproof Roof Bag provides 7 cubic feet more capacity than the MoNiBloom 13 Cu Ft model. It measures 52 inches long and 40 inches wide. This soft bag is lockable, offering security similar to the MoNiBloom hard shell. You give up the rigid, aerodynamic shape and superior weather sealing of the hard shell. The soft material is more susceptible to damage from road debris. This option suits families needing flexible capacity on vehicles without permanent racks. It is a good choice when gear volume varies and waterproofing is critical.
Thule Pulse 2 L 16 cu ft Dual-Side Box
The Thule Pulse 2 L 16 cu ft Dual-Side Box is a hard shell unit like the MoNiBloom but offers 3 cubic feet more space. It measures 81 inches long and 37 inches wide. This model features dual-side opening for convenient access from either side of the vehicle. You gain significant volume and side access but pay a premium for the brand. It requires standard roof racks for mounting. This alternative suits buyers who prioritize durability, heavy load capacity, and side access over the smaller, single-access design of the MoNiBloom 13 Cu Ft box.
Quick picks
Our 7 picks
MoNiBloom 13 Cu Ft Hard Shell Roof Box
Best for: Secure, weather-protected storage for small loads
- Capacity
- 13 Cubic
- Shell Type
- Hard shell
- Water Resistance
- Weather resistant
- Security
- Reliable lock
- Dimensions
- 56.3 x 36.8 x 16.2 in
- Mount Type
- Roof Mount
The MoNiBloom 13 Cubic Foot roof box offers a hard shell design to protect your gear. It measures 56.3 x 36.8 x 16.2 inches and weighs 41 pounds. This unit includes a reliable lock for security. It mounts to standard roof racks. You will appreciate the weather-resistant build for road trips. It frees up interior cabin space for passengers.
Pros
- Hard shell exterior shields cargo from wind and rain
- Includes a reliable lock for security
- Mounts to most standard roof racks
- Weighs 41 pounds for manageable handling
Cons
- 13 cubic foot capacity is smaller than most soft bags on this list
- Weather resistant rather than fully waterproof
- Only 16.2 inches of height limits tall item storage
Good fit if
- You need a secure, lockable hard shell option
- You want to protect gear from road debris
- You have a smaller vehicle or lighter load needs
Skip if
- You require maximum storage capacity over 20 cubic feet
- You need full waterproofing for heavy rain exposure
- You prefer a softer, more flexible bag design
Verdict: MoNiBloom 13 Cu Ft Hard Shell Roof Box suits drivers who prioritize security and weather protection over raw volume. It is a solid choice for smaller loads where a lockable hard shell is essential.
MeeFar 15 cu ft Roof Bag
Best for: small loads and cars without roof racks
- Capacity
- 15 cubic feet
- Shell Type
- 700D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- combination lock
- Installation
- quickly and easily installed in minutes
- Dimensions
- 44" L x 34" W x 17" H
The MeeFar 15 cubic feet rooftop cargo bag offers a soft-shell solution for vehicles without roof racks. It measures 44 x 34 x 17 inches and uses 700D PVC tarpaulin for 100% waterproof protection. The design includes six security hooks and a combination lock for added safety. You get anti-slip mats and a storage box for easy transport. This compact carrier fits smaller loads and folds down for storage when not in use.
Pros
- 100% waterproof 700D PVC tarpaulin construction
- Universal compatibility with or without roof racks
- Includes combination lock and six security hooks
- Folds into a compact storage box
Cons
- 15 cubic feet capacity is smaller than hard-shell alternatives
- Soft shell offers less aerodynamic efficiency than rigid boxes
- 100 kilograms listed weight is unusually high for this type
Good fit if
- You need a carrier for a car without roof rails
- You want a budget-friendly soft-shell option
- You have limited storage space for the empty carrier
Skip if
- You require maximum aerodynamic performance on highways
- You need to carry more than 15 cubic feet
- You prefer a rigid, hard-shell structure for security
Verdict: MeeFar 15 Cu Ft Rooftop Cargo Bag is a practical, low-profile choice for small loads and vehicles lacking roof racks. It suits buyers who prioritize easy storage and universal fit over high-speed stability.
FIVKLEMNZ 30 Cubic Feet Roof Bag
Best for: high-capacity storage on vehicles without racks
- Capacity
- 30 cu ft
- Shell Type
- 840D PVC soft bag
- Water Resistance
- 100% waterproof
- Security
- Luggage lock
- Installation
- Straps and door hooks
- Vehicle Compatibility
- With or without roof rack
This soft rooftop cargo bag offers 30 cubic feet of storage in a 60 by 43 by 20 inch footprint. It uses 840D PVC material with welded seams for full waterproof protection. The design includes ten straps and six door hooks for secure mounting. It fits vehicles with or without existing roof racks. You get a complete kit with locks and an anti-slip mat included for immediate use.
Pros
- 30 cubic feet capacity holds 7-9 suitcases
- 100% waterproof 840D PVC construction
- 10 straps and 6 door hooks for stability
- Fits vehicles without roof racks
Cons
- Soft shell lacks rigid impact protection
- No mention of aerodynamic wind noise reduction
- Bulkier profile than hard-shell alternatives
Good fit if
- You need maximum storage volume for large trips
- Your vehicle lacks roof racks or crossbars
- You want a waterproof soft bag solution
Skip if
- You prefer a rigid hard-shell cargo box
- You need a smaller 15 or 21 cubic foot option
- You prioritize aerodynamic efficiency over raw capacity
Verdict: FIVKLEMNZ 30 Cu Ft Roof Bag provides substantial soft storage for vehicles without racks. It suits travelers needing high capacity and full waterproofing who do not require a rigid shell.
Sailnovo 21 cu ft Soft Roof Bag
Best for: occasional cargo needs on cars without rails
- Capacity
- 21 cubic feet
- Shell Type
- Soft Shell
- Water Resistance
- Waterproof
- Installation
- Tie-Down Strap
- Dimensions
- 9.84 x 7.09 x 13.8 in
- Vehicle Type
- Car
This Sailnovo roof bag offers 21 cubic feet of soft-shell storage. It weighs 8.16 pounds and uses tie-down straps for mounting. The waterproof material protects your gear from rain. It fits cars without existing roof rails. You get a flexible container that compresses when empty. This option works well for occasional trips where you need extra space without the bulk of a hard box.
Pros
- 21 cubic feet of storage capacity
- Waterproof construction keeps gear dry
- Lightweight at 8.16 pounds
- Soft shell folds flat for storage
Cons
- Soft shell offers less impact protection than hard plastic
- Tie-down straps only, no integrated locking mechanism
- Lower aerodynamic efficiency compared to hard shell boxes
Good fit if
- You need extra space for weekend gear
- You want to save on roof rack installation costs
- You have limited storage space for the carrier when not in use
Skip if
- You drive frequently on highways and need better fuel economy
- You require built-in security locks for your cargo
- You want a rigid shell to protect fragile items from road debris
Verdict: Sailnovo 21 Cu Ft Soft Roof Bag provides flexible, waterproof storage for buyers who prioritize capacity and portability over aerodynamic efficiency. It suits those who do not need integrated locks and prefer a lightweight, compressible solution for occasional use.
RoofPax 19 cu ft Polyester Roof Bag
Best for: Flexible storage for cars without roof racks
- Capacity
- 19 Cubic feet
- Shell Type
- polyester
- Water Resistance
- 100% waterproof
- Installation
- door hook straps, 10 straps
- Vehicle Compatibility
- fits cars with or without roof rack
- Dimensions
- 47.2 x 35.4 x 19.8 in
The RoofPax is a 19 cubic foot soft-sided cargo carrier made from waterproof polyester. It measures 47.2 by 35.4 inches and weighs 12.4 pounds. The bag uses patented 4-door hook straps and ten additional tie-down straps for mounting. It fits vehicles with or without roof racks. This soft bag offers high capacity without the bulk of a hard shell.
Pros
- 19 cubic feet of storage space
- 100% waterproof polyester construction
- Patented 4-door hook straps included
- Fits vehicles with or without roof racks
Cons
- Soft material offers less impact protection than hard shells
- 19 cubic feet is smaller than the 21 cubic feet Thule Motion 3 XXL
- No rigid shell to prevent snow accumulation
Good fit if
- You need to carry bulky items that do not fit in hard boxes
- You want a bag that mounts easily to cars without roof racks
- You prioritize waterproof fabric over rigid impact protection
Skip if
- You require maximum aerodynamic efficiency and noise reduction
- You need more than 19 cubic feet of cargo space
- You prefer the security and weather sealing of a hard shell
Verdict: RoofPax 19 CuFt Waterproof Soft Cargo Bag provides a flexible, waterproof storage solution for drivers who lack roof racks or need to carry irregularly shaped gear that exceeds the limits of a hard shell.
Asinking 20 cu ft Waterproof Roof Bag
Best for: waterproof storage on vehicles without roof rails
- Capacity
- 20 cu ft
- Shell Type
- 900D PVC tarpaulin
- Water Resistance
- 100% waterproof
- Security
- Lock
- Installation
- Metal ring strap design
- Vehicle Compatibility
- With or without roof rack
The Asinking 20 cubic feet roof bag offers flexible storage for vehicles with or without racks. It features 900D PVC tarpaulin construction with triple-reinforced seams and a double-flap zipper for 100% waterproof protection. The bag measures 52 by 40 inches and expands from 12 to 18.5 inches in height. Metal ring straps secure it to crossbars or roof rails. You get lockable security and a foldable design for easy storage when not in use.
Pros
- 20 cubic feet capacity expands from 12 to 18.5 inches
- 100% waterproof with 900D PVC tarpaulin and triple-reinforced seams
- Fits vehicles with or without roof racks
- Metal ring strap design simplifies installation
Cons
- Soft shell lacks the aerodynamic efficiency of hard boxes
- Straps may create wind noise at highway speeds
- No integrated locking mechanism included with the bag
Good fit if
- You need extra storage for a vehicle without roof rails
- You require 100% waterproof protection for your cargo
- You want a foldable carrier that saves space at home
Skip if
- You prioritize maximum fuel efficiency over storage volume
- You need a rigid shell for heavy impact protection
- You prefer a compact bag under 15 cubic feet
Verdict: Asinking 20 cu ft Soft Roof Bag provides ample, waterproof storage for families needing flexible capacity on vehicles without permanent racks. It suits road trips where gear volume varies and weather protection is critical.
Thule Pulse 2 L 16 cu ft Dual-Side Box
Best for: side access and heavy loads
- Capacity
- 16 Cubic Ft
- Shell Type
- ASA-ABS plastic
- Opening
- Dual-side
- Load Capacity
- 75 kg
- Installation
- Tool-free
- Dimensions
- 81 x 17 x 37 in
The Thule Pulse 2 L is a 16 cubic foot roof box with dual-side opening. It holds 75 kg and measures 81 x 17 x 37 inches. The ASA-ABS shell resists weather. You get tool-free installation with a torque indicator. This hard box suits those who need side access and durable storage for gear like skis or luggage.
Pros
- Dual-side opening for easy access
- 75 kg load capacity
- Tool-free installation with torque click
- ASA-ABS plastic shell
Cons
- 16 cubic feet capacity is smaller than 19-30 cubic feet alternatives
- Rigid box shape may not fit narrow roof racks
- Higher profile than soft roof bags
Good fit if
- You need to access gear from the curb side
- You carry heavy loads up to 75 kg
- You prefer a durable hard shell over fabric
Skip if
- You require more than 16 cubic feet of space
- You need a budget soft bag option
- You have a very narrow roof rack
Verdict: Thule Pulse 2 L Dual-Side offers secure, tool-free storage with convenient side access. It fits buyers who prioritize durability and heavy loads over maximum volume.
Specifications side by side
| Spec | MoNiBloom 13 Cu Ft Hard Shell Roof Box | MeeFar 15 cu ft Roof Bag | FIVKLEMNZ 30 Cubic Feet Roof Bag | Sailnovo 21 cu ft Soft Roof Bag | RoofPax 19 cu ft Polyester Roof Bag | Asinking 20 cu ft Waterproof Roof Bag | Thule Pulse 2 L 16 cu ft Dual-Side Box |
|---|---|---|---|---|---|---|---|
| Capacity | 13 Cubic | 15 cubic feet | 30 cu ft | 21 cubic feet | 19 Cubic feet | 20 cu ft | 16 Cubic Ft |
| Shell Type | Hard shell | 700D PVC tarpaulin | 840D PVC soft bag | Soft Shell | polyester | 900D PVC tarpaulin | ASA-ABS plastic |
| Opening | not specified | not specified | not specified | not specified | not specified | not specified | Dual-side |
| Load Capacity | not specified | not specified | not specified | not specified | not specified | not specified | 75 kg |
| Water Resistance | Weather resistant | 100% waterproof | 100% waterproof | Waterproof | 100% waterproof | 100% waterproof | not specified |
| Security | Reliable lock | combination lock | Luggage lock | not specified | not specified | Lock | not specified |
| Installation | not specified | quickly and easily installed in minutes | Straps and door hooks | Tie-Down Strap | door hook straps, 10 straps | Metal ring strap design | Tool-free |
| Vehicle Compatibility | not specified | not specified | With or without roof rack | not specified | fits cars with or without roof rack | With or without roof rack | not specified |
| Dimensions | 56.3 x 36.8 x 16.2 in | 44" L x 34" W x 17" H | 60 x 43 x 20 in | 9.84 x 7.09 x 13.8 in | 47.2 x 35.4 x 19.8 in | 52 x 40 x 12-18.5 in | 81 x 17 x 37 in |
| Recommended Use | not specified | not specified | Suitcases, tents, sleeping bags | not specified | not specified | not specified | Luggage, gear, skis, snowboards |
| Vehicle Type | not specified | Car | Car | Car | Car | Car | not specified |
| Size | 13 Cubic | 15 Cubic Feet | 30 Cubic Feet | 21 Cubic Feet | 19 Cubic feet | 20 Cubic Feet | Large |
| Mount Type | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount | Roof Mount |
| Use | not specified | not specified | not specified | not specified | not specified | not specified | Ski/Snowboard |
| Lockable | not specified | Lockable | Lockable | not specified | not specified | Lockable | not specified |
| Weight | 41 pounds | 100 kilograms | 12 pounds | 8.16 pounds | 12.4 pounds | not specified | not specified |
| Color | Black | Black and Orange | Black and Orange | Black | ['Black', 'Orange', 'Grey'] | Black with Blue | Black |
| Model | Mnb-rtcb-001 | 15 Cubic Feet | 30 Cubic Feet | Sailnovo5033-FR | Rooftop_Cargo_Carrier | rooftop cargo bag | 610750 |
Frequently asked questions
What is the largest capacity roof bag available in this list?
The FIVKLEMNZ 30 Cubic Feet Roof Bag offers the highest volume among these alternatives. It measures 60 inches long and 60 inches wide, providing substantial soft storage for vehicles without racks. This model weighs only 12 pounds, making it a lightweight option for travelers needing maximum capacity without a rigid shell.
Which roof box allows access from both sides?
The Thule Pulse 2 L 16 cu ft Dual-Side Box features dual-side opening functionality. Measuring 81 inches long and 37 inches wide, it provides convenient side access for heavy loads. This design suits drivers who prioritize durability and easy loading over maximum internal volume in a hard shell format.
Are there lockable soft roof bags on this list?
Yes, the Asinking 20 cu ft Waterproof Roof Bag is listed as lockable. It offers 20 cubic feet of waterproof storage for vehicles without roof rails. This feature adds security for families needing flexible capacity on road trips where weather protection and gear safety are critical concerns.
Which option is best for cars without roof racks?
Several soft roof bags suit vehicles without permanent racks. The MeeFar 15 cu ft Roof Bag and the Sailnovo 21 cu ft Soft Roof Bag are designed for this use. They offer universal fit and flexible storage, making them practical choices for buyers who prioritize easy installation and portability over high-speed stability.
What are the dimensions of the MoNiBloom 13 Cu Ft box?
The MoNiBloom 13 Cu Ft Hard Shell Roof Box measures 56.3 inches in length, 36.8 inches in width, and 16.2 inches in height. It weighs 41 pounds. These dimensions make it a solid choice for smaller loads where a lockable hard shell is essential for security and weather protection.
Is the Sailnovo bag waterproof?
The Sailnovo 21 cu ft Soft Roof Bag provides flexible, waterproof storage. It is designed for buyers who prioritize capacity and portability over aerodynamic efficiency. The soft shell construction allows for a lightweight, compressible solution that is ideal for occasional use on cars without rails.
Which roof bag is the lightest on this list?
The FIVKLEMNZ 30 Cubic Feet Roof Bag weighs only 12 pounds. Despite its large 60 by 60 inch footprint, it remains the lightest option. This low weight makes it suitable for high-capacity storage on vehicles without racks, where full waterproofing is needed without the burden of a rigid shell.
Does the Asinking bag come in multiple colors?
The Asinking 20 cu ft Waterproof Roof Bag is described as Black with Blue. It provides ample storage for families needing flexible capacity on vehicles without permanent racks. The color scheme helps identify the bag while offering critical weather protection during road trips where gear volume varies.