Mockins 40 CuFt XXL Soft-Shell vs Mockins 30 Cu Ft Car: Spec Comparison
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This mockins 40 cuft xxl soft shell vs 30 cu ft car comparison helps you choose the right roof bag. Both models offer waterproof soft-shell storage that fits vehicles with or without racks. They include straps, hooks, and mats for secure installation. The main difference lies in their capacity and dimensions. The larger bag provides more volume for extended trips, while the smaller option saves weight and fits tighter spaces.
Key differences
| Aspect | Mockins 40 cu ft XXL Soft-Shell Roof Bag | Mockins 30 Cu Ft Soft-Shell Roof Bag |
|---|---|---|
| Capacity | 40 cu ft | 30 cu ft |
| Dimensions | 72 x 48 x 20 in | 60 x 43 x 20 in |
| Weight | 15.7 pounds | 12.5 pounds |
| Shell Material | Abrasion-resistant vinyl | 840D material |
| Included Straps | 3 buckle, 3 ratchet | 4 buckle, 2 ratchet |
Which one should you choose?
Choose Mockins 40 cu ft XXL Soft-Shell Roof Bag if
- You need maximum storage for large items like sleeping bags or multiple suitcases.
- Your vehicle roof is wide enough to accommodate a 72-inch length.
- You prefer vinyl construction for abrasion resistance.
Choose Mockins 30 Cu Ft Soft-Shell Roof Bag if
- You want a lighter carrier that is easier to handle.
- Your roof space is limited or you drive a smaller vehicle.
- You prefer a setup with more buckle straps for securing the load.
Verdict: Choose the 40 cu ft model if volume is your priority and your vehicle can support the larger footprint. The 30 cu ft bag is better for lighter loads and vehicles with tighter roof constraints. Both offer the same waterproof protection and installation flexibility.
Capacity, Size, and Weight Comparison
Storage Capacity
The Mockins 40 CuFt XXL Soft-Shell offers 40 cubic feet of volume, while the Mockins 30 Cu Ft Car provides 30 cubic feet. You gain 10 extra cubic feet with the larger model, which is significant for bulky items like sleeping bags, tents, or multiple suitcases. If you are moving or planning a long trip with heavy gear, the XXL model gives you more room. The 30 Cu Ft version is sufficient for standard luggage or weekend camping trips. Choose the 40 CuFt model if you need maximum space, or the 30 CuFt if your load is lighter.
Physical Dimensions
Size matters for fitting your vehicle. The Mockins 40 CuFt XXL Soft-Shell measures 72 inches long by 48 inches wide. The Mockins 30 Cu Ft Car is smaller at 60 inches long by 43 inches wide. Both share the same height of 20 inches. The 40 CuFt model is 12 inches longer and 5 inches wider. You must ensure your vehicle roof can accommodate the larger footprint. If you have a smaller car or SUV, the 30 Cu Ft model may fit better without overhang. Check your roof rack or rail width before deciding.
Weight and Load
Weight affects fuel efficiency and handling. The Mockins 40 CuFt XXL Soft-Shell weighs 15.7 pounds. The Mockins 30 Cu Ft Car weighs 12.5 pounds. The larger bag is 3.2 pounds heavier. This difference is noticeable when lifting the bag onto your roof. Heavier loads also add more drag. If you prioritize ease of installation and lower aerodynamic resistance, the 30 Cu Ft model is lighter. However, if you are hauling more gear, the weight of the bag itself is less important than the cargo weight. Both are manageable for most adults.
Material and Build
Both bags use durable materials for weather protection. The Mockins 30 Cu Ft Car is explicitly made from abrasion-resistant 840D material. The Mockins 40 CuFt XXL Soft-Shell is described as crafted from abrasion-resistant vinyl. Both feature waterproof zippers under protective flaps and reinforced seams. The 30 Cu Ft model highlights welded seams for added strength. The 40 CuFt model emphasizes a triple-shield design. While both are waterproof soft-shells, the 30 Cu Ft model specifies the fabric denier, which indicates high durability. The 40 CuFt model relies on vinyl construction for its weather resistance.
Included Accessories
Installation kits vary slightly between the two. The Mockins 40 CuFt XXL Soft-Shell includes 3 buckle straps, 3 ratchet straps, 6 door hooks, 2 trunk hooks, a roof mat, a combo lock, and a carry bag. The Mockins 30 Cu Ft Car includes 4 buckle straps, 2 ratchet straps, 4 door hooks, a roof mat, and a carry bag, plus a combination lock. The 40 CuFt model provides more door hooks and ratchet straps, which may help secure the larger surface area. The 30 Cu Ft model offers an extra buckle strap. Both provide comprehensive kits for tool-free installation on vehicles with or without racks.
Which Mockins roof bag fits your needs
Families with bulky camping gear
You need the extra 10 cubic feet of storage space this model provides. Its 72-inch length and 48-inch width accommodate large suitcases, sleeping bags, and tents more easily than the smaller option. The soft-shell design expands to hold more volume, making it ideal for extended road trips where maximizing cargo capacity is essential for comfort.
Drivers with smaller vehicles
This 30 cubic feet bag measures 60 inches long and 43 inches wide, fitting more comfortably on compact car roofs. It weighs only 12.5 pounds, which is lighter than the 40 cubic feet version. The compact footprint ensures better aerodynamics and stability on smaller vehicles while still providing ample room for luggage and travel essentials.
Users prioritizing lightweight portability
At 12.5 pounds, this model is significantly lighter than the 15.7 pound 40 cubic feet alternative. The reduced weight makes it easier to lift onto the roof and handle during installation. It folds into its own carry case for convenient storage when not in use, offering a practical solution for those who value ease of handling and transport.
The products compared
Mockins 40 cu ft XXL Soft-Shell Roof Bag
Best for: Large gear transport on vehicles without racks
- Capacity
- 40 cu ft
- Shell Type
- Soft shell (vinyl)
- Water Resistance
- Waterproof
- Security
- Combo lock
- Installation
- Buckle/ratchet straps, door hooks
- Vehicle Compatibility
- With or without roof rack
View on Amazon: Mockins 40 cu ft XXL Soft-Shell Roof Bag Affiliate link
This 40 cubic foot soft-shell roof bag measures 72 by 48 by 20 inches. It provides ample space for large gear like suitcases and sleeping bags. The waterproof vinyl construction and triple-shield design protect contents from rain. You can secure it using ratchet straps, buckle straps, or door and trunk hooks. This carrier fits vehicles with or without existing roof racks, making it a versatile option for expanding storage.
Pros
- 40 cubic feet of cargo capacity
- Waterproof vinyl shell with reinforced seams
- Fits vehicles with or without roof racks
- Includes door hooks and trunk hooks for flexible mounting
Cons
- Soft-shell design offers less aerodynamic efficiency than hard shells
- Weighs 15.7 pounds, adding to vehicle load
- Requires manual installation using multiple strap types
Good fit if
- You need extra storage for large items like tents
- Your vehicle lacks a permanent roof rack system
- You want a waterproof solution for rainy trips
Skip if
- You prefer rigid, hard-shell carriers for better aerodynamics
- You need a carrier smaller than 30 cubic feet
- You want a lightweight bag under 10 pounds
Verdict: Mockins 40 CuFt XXL Soft-Shell Roof Bag suits travelers who need maximum volume and flexible mounting options for vehicles without permanent racks. It is ideal for hauling bulky gear like sleeping bags and suitcases in wet conditions.
Mockins 30 Cu Ft Soft-Shell Roof Bag
Best for: cars without roof racks
- Capacity
- 30 cu ft
- Shell Type
- 840D vinyl soft-shell
- Water Resistance
- Waterproof
- Security
- Combination lock
- Installation
- Straps and hooks
- Vehicle Compatibility
- With or without crossbars or rails
View on Amazon: Mockins 30 Cu Ft Soft-Shell Roof Bag Affiliate link
This Mockins soft-shell cargo bag offers 30 cubic feet of storage with dimensions of 60 by 43 by 20 inches. It weighs 12.5 pounds and is constructed from 840D abrasion-resistant material. The design includes a waterproof zipper and welded seams for weather protection. You get four buckle straps, two ratchet straps, and door hooks for installation without a roof rack. A combination lock adds security. It fits vehicles with or without existing cross bars.
Pros
- 30 cubic feet capacity
- 840D waterproof material
- Includes door hooks and straps
- Combination lock security
- Fits vehicles without roof racks
Cons
- Smaller capacity than the 40 CuFt XXL model
- Soft-shell design offers less rigid protection than hard cases
- 12.5-pound weight adds to roof load
Good fit if
- You need extra storage for a weekend trip
- Your car lacks a permanent roof rack
- You want a waterproof soft-shell solution
Skip if
- You require maximum capacity for large groups
- You prefer a rigid hard-shell case
- You need a model with a built-in rack
Verdict: Mockins 30 CuFt Soft-Shell Roof Bag is a practical choice for drivers who need flexible storage on vehicles without cross bars. It suits those prioritizing waterproof protection and easy installation over maximum volume.
Specifications side by side
| Spec | Mockins 40 cu ft XXL Soft-Shell Roof Bag | Mockins 30 Cu Ft Soft-Shell Roof Bag |
|---|---|---|
| Capacity | 40 cu ft | 30 cu ft |
| Shell Type | Soft shell (vinyl) | 840D vinyl soft-shell |
| Water Resistance | Waterproof | Waterproof |
| Security | Combo lock | Combination lock |
| Installation | Buckle/ratchet straps, door hooks | Straps and hooks |
| Vehicle Compatibility | With or without roof rack | With or without crossbars or rails |
| Dimensions | 72 x 48 x 20 in | 60 x 43 x 20 in |
| Recommended Use | Suitcases, sleeping bags | not stated |
| Vehicle Type | Car, SUV, Truck, Van | Car |
| Mount Type | Roof Mount | Roof Mount |
| Lockable | not stated | Lockable |
| Includes Bag | not stated | With Bag |
| Weight | 15.7 pounds | 12.5 pounds |
| Size | 40 Cubic Feet | 30 Cubic Feet (60"x43"x20") |
| Color | Black/Orange | Black/Orange |
| Model | MA-RB-40BLK-89-V2 | MA-RB-30OR-60X43X20-88 |
Frequently asked questions
Does the 40 cu ft bag fit on a car without roof racks?
Yes, the Mockins 40 CuFt XXL Soft-Shell Roof Bag is designed for vehicles without permanent racks. It uses flexible mounting options to secure the bag directly to the car. This makes it suitable for hauling bulky gear like suitcases and sleeping bags in wet conditions.
What are the exact dimensions of the 40 cubic foot roof bag?
The Mockins 40 CuFt model measures 72 inches in length, 48 inches in width, and 20 inches in height. These external dimensions allow it to accommodate larger items than the 30 CuFt version. The total capacity is 40 cubic feet of storage volume.
How much does the 30 cu ft roof bag weigh?
The Mockins 30 CuFt Soft-Shell Roof Bag weighs 12.5 pounds. This is lighter than the 40 CuFt model, which weighs 15.7 pounds. The reduced weight makes the smaller bag easier to handle during installation and removal from your vehicle.
Is the 30 cu ft bag suitable for cars without cross bars?
Yes, the Mockins 30 CuFt Soft-Shell Roof Bag is a practical choice for drivers with vehicles lacking cross bars. It prioritizes waterproof protection and easy installation. You can mount it securely using the included straps and hooks without needing permanent roof racks.
What is the size difference between the two Mockins roof bags?
The 40 CuFt bag offers 10 extra cubic feet of volume compared to the 30 CuFt model. In terms of physical size, the larger bag is 12 inches longer and 5 inches wider. The height remains the same at 20 inches for both models.
Can I use the 40 cu ft bag on a car?
Yes, the Mockins 40 CuFt XXL Soft-Shell Roof Bag is rated for car use. It features a soft-shell design that conforms to your vehicle's roof. This flexibility allows for secure attachment on cars that do not have factory-installed roof racks or cross bars.
Which roof bag is better for transporting large suitcases?
The Mockins 40 CuFt XXL Soft-Shell Roof Bag is better for large suitcases due to its 72-inch length and 48-inch width. The extra space accommodates bulky gear more easily than the smaller 30 CuFt option. Its larger footprint provides more stability for heavy loads.
Does the 30 cu ft bag include installation hardware?
Yes, both models include straps, hooks, and mats for secure installation. The Mockins 30 CuFt Soft-Shell Roof Bag uses these components to attach firmly to your vehicle. This ensures the bag stays in place during travel, even on cars without existing roof racks.