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Looking Beyond the Mockins 30 Cu Ft Car? 6 Alternatives Worth a Look

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The Mockins 30 Cu Ft Car Roof Cargo Carrier Bag offers 30 cubic feet of soft-shell storage. It fits vehicles with or without roof racks, using straps and door hooks for installation. The 840D material and waterproof zipper protect gear from the elements. This setup is ideal for travelers who need high volume and do not have a factory roof rack.

You might look for mockins 30 cu ft car alternatives if you prefer a different capacity or a more aerodynamic hard shell. Some drivers want a lighter bag or a specific color option. Others may need a model that fits smaller vehicles better. We selected these alternatives because their specifications overlap with the original. Each option provides comparable soft-shell storage for cars and SUVs. You can compare dimensions, weight, and material to find the best fit for your trip.

Our top pick: Mockins 30 Cu Ft Soft-Shell Roof Bag.

How alternatives differ from Mockins

FIVKLEMNZ 30 Cubic Feet Roof Bag

The FIVKLEMNZ 30 Cu Ft bag matches the Mockins capacity at 30 cubic feet, but it is slightly lighter at 12 pounds versus 12.5 pounds. It shares the 60 by 43 by 20 inch footprint, ensuring similar roof coverage. You get the same high-volume storage for vehicles without racks. The main difference is the weight reduction. If you want maximum space with minimal added weight, this is a solid choice. It keeps the same practical dimensions and soft-shell design. You trade the specific brand accessories for a comparable setup. It suits those who prioritize capacity and weight over brand loyalty.

Mockins 30 cu ft Soft-Shell Vinyl Roof Bag

This Mockins soft-shell vinyl bag offers the same 30 cubic feet of space and identical 60 by 43 by 20 inch dimensions. However, it weighs 15.5 pounds, which is 3 pounds heavier than the standard 30 Cu Ft model. The vinyl material may feel different to the touch. You get the same rack-free installation and waterproof protection. The extra weight might affect fuel efficiency slightly more. This version is ideal if you prefer the vinyl construction or find it on sale. It provides the same high-volume utility for families or moving trips. You accept the heavier weight for the same spacious interior.

MeeFar 15 cu ft Roof Bag

The MeeFar 15 Cu Ft bag is significantly smaller than the Mockins 30 Cu Ft option. It holds half the volume, with dimensions of 44 by 34 by 17 inches. This makes it suitable for small cars or light travel loads. It is not a direct competitor for high-volume needs. You give up half the storage space for a more compact profile. The weight is listed as 100 kilograms in the data, which appears to be a data error, but it is generally lighter than the 30 Cu Ft models. Pick this if you have a smaller vehicle or only need to carry a few bags. It sacrifices capacity for a tighter fit on smaller roofs.

Sailnovo 21 cu ft Soft Roof Bag

The Sailnovo 21 Cu Ft bag offers less capacity than the Mockins 30 Cu Ft model. It provides 21 cubic feet of space, which is suitable for moderate cargo needs. The dimensions are smaller, making it a practical solution for weekend trips. You give up 9 cubic feet of storage compared to the Mockins. This is ideal if you do not need maximum volume. The soft-shell design remains similar, offering waterproof protection. It is lighter and takes up less roof space. Choose this if you prioritize a lower profile and moderate storage. It fits drivers who find 30 cubic feet excessive for their typical travel needs.

RoofPax 19 cu ft Polyester Roof Bag

The RoofPax 19 Cu Ft bag is smaller than the Mockins 30 Cu Ft option. It offers 19 cubic feet of space with dimensions of 47.2 by 35.4 by 19.8 inches. This is a secure, waterproof option for drivers without roof racks. You give up significant storage volume for a more compact design. It suits those prioritizing installation security and material durability over high capacity. The polyester material provides reliable protection. This bag is better for smaller loads or tighter roof spaces. Pick this if you do not need the maximum 30 cubic feet. It offers a balanced approach for moderate travel requirements without the bulk of larger carriers.

Asinking 20 cu ft Waterproof Roof Bag

The Asinking 20 Cu Ft bag provides less volume than the Mockins 30 Cu Ft model. It holds 20 cubic feet with dimensions of 52 by 40 by 18.5 inches. This is a compact option for smaller vehicles or lighter luggage loads. You give up 10 cubic feet of storage space. The bag is lockable, adding a layer of security. It is ideal for drivers who prioritize compact dimensions and easy installation. The blue and black color scheme offers a different aesthetic. Choose this if you need moderate capacity with a secure locking mechanism. It is a practical choice for those who find the Mockins too large for their vehicle.

Quick picks

#ProductBest forPrice
1 Mockins 30 Cu Ft Soft-Shell Roof Bag Best overall High-volume storage on vehicles without racks Check price of Mockins 30 Cu Ft Soft-Shell Roof Bag on Amazon
2 FIVKLEMNZ 30 Cubic Feet Roof Bag Best budget Large loads on vehicles without roof racks Check price of FIVKLEMNZ 30 Cubic Feet Roof Bag on Amazon
3 Mockins 30 cu ft Soft-Shell Vinyl Roof Bag Best suv high-volume storage on vehicles without racks Check price of Mockins 30 cu ft Soft-Shell Vinyl Roof Bag on Amazon
4 MeeFar 15 cu ft Roof Bag Best 15 cubic feet Small cars and light travel loads Check price of MeeFar 15 cu ft Roof Bag on Amazon
5 Sailnovo 21 cu ft Soft Roof Bag Best 21 cubic feet moderate cargo needs without hard shells Check price of Sailnovo 21 cu ft Soft Roof Bag on Amazon
6 RoofPax 19 cu ft Polyester Roof Bag Also great Secure installation on cars without roof racks Check price of RoofPax 19 cu ft Polyester Roof Bag on Amazon
7 Asinking 20 cu ft Waterproof Roof Bag Best 20 cubic feet Compact vehicles and lighter luggage loads Check price of Asinking 20 cu ft Waterproof Roof Bag on Amazon

Our 7 picks

Best overall

Mockins 30 Cu Ft Soft-Shell Roof Bag

Best for: High-volume storage on vehicles without racks

Capacity
30 cu ft
Shell Type
Soft-shell, 840D vinyl
Water Resistance
Waterproof
Security
Combination lock
Vehicle Compatibility
With or without crossbars or roof racks
Dimensions
60 x 43 x 20 in

View on Amazon: Mockins 30 Cu Ft Soft-Shell Roof Bag

This is a 30 cubic foot soft-shell rooftop cargo carrier. It measures 60 by 43 by 20 inches and weighs 12.5 pounds. The bag uses 840D material with welded seams for waterproof protection. It installs without a roof rack using straps and door hooks. You get a combination lock for security. This setup suits families needing maximum overhead storage for road trips.

Pros

  • 30 cubic feet of storage capacity
  • Waterproof 840D shell with welded seams
  • Includes combination lock for security
  • Tool-free installation with door hooks
  • Protective roof mat included

Cons

  • Soft bag shape offers less aerodynamic efficiency than hard shells
  • Requires manual tightening of ratchet straps
  • No integrated locking mechanism for the straps themselves

Good fit if

  • You need maximum storage volume for large families
  • You drive a vehicle without existing roof racks
  • You prioritize waterproof protection for gear

Skip if

  • You prefer a rigid hard-shell carrier
  • You want a streamlined aerodynamic profile
  • You need a carrier under 20 cubic feet

Verdict: Mockins 30 Cu Ft Rooftop Cargo Bag provides high-volume storage for vehicles lacking factory racks. It fits travelers who prioritize capacity and waterproofing over aerodynamic design. The soft-shell design maximizes space but requires careful strap management.

Best budget

FIVKLEMNZ 30 Cubic Feet Roof Bag

Best for: Large loads on vehicles without roof 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

View on Amazon: FIVKLEMNZ 30 Cubic Feet Roof Bag

This soft cargo bag offers 30 cubic feet of storage in a 60 x 43 x 20 inch footprint. It uses 840D PVC with welded seams for full waterproofing. The design includes 10 straps and 6 door hooks for secure mounting. It fits vehicles with or without roof racks. You get a complete kit with an anti-slip mat and lock. It weighs 12 pounds for easy handling.

Pros

  • 30 cubic feet capacity holds 7-9 suitcases
  • 840D PVC shell with high-frequency welded seams
  • 10 reinforced straps and 6 door hooks
  • Fits vehicles with or without roof racks

Cons

  • Soft shell offers no rigid protection for contents
  • Requires manual strap tightening for security
  • Heavier at 12 pounds than smaller bags

Good fit if

  • You need maximum soft storage for large loads
  • You drive vehicles without roof racks
  • You want full waterproofing for long trips

Skip if

  • You prefer hard-shell aerodynamic designs
  • You want a lighter bag under 10 pounds
  • You need rigid impact protection for gear

Verdict: FIVKLEMNZ 30 Cu Ft Waterproof Roof Bag is ideal for travelers who need high capacity and rack-free installation. It suits those prioritizing waterproofing and secure strap systems over rigid structure.

Best suv

Mockins 30 cu ft Soft-Shell Vinyl Roof Bag

Best for: high-volume storage on vehicles without racks

Capacity
30 cu ft
Shell Type
soft-shell vinyl
Water Resistance
waterproof
Security
combination lock
Vehicle Compatibility
vehicles with or without roof rack
Dimensions
60 x 43 x 20 in

View on Amazon: Mockins 30 cu ft Soft-Shell Vinyl Roof Bag

This soft-shell vinyl bag offers 30 cubic feet of storage with dimensions of 60 x 43 x 20 inches. It weighs 15.5 pounds and fits vehicles with or without roof racks. The waterproof design includes a protective mat, door hooks, and straps. You get a combination lock for security. This carrier suits those needing high capacity for SUVs or trucks who prefer a versatile, rack-free mounting solution.

Pros

  • Generous 30 cubic feet capacity
  • Fits vehicles with or without roof racks
  • Includes protective roof mat and door hooks
  • Waterproof vinyl with welded seams

Cons

  • Heavier at 15.5 pounds than compact alternatives
  • Soft-shell vinyl less rigid than hard cases
  • No mention of internal dividers or organization

Good fit if

  • You need maximum cargo space for large loads
  • You drive a vehicle without existing roof racks
  • You want a versatile bag for truck bed use

Skip if

  • You require a rigid hard-shell for aerodynamic efficiency
  • You prefer a lightweight carrier under 10 pounds
  • You need internal compartments for item separation

Verdict: Mockins 30 Cu Ft Soft-Shell Roof Bag provides ample 30 cubic feet of space for families or moving trips. It is the right choice for drivers without roof racks who prioritize volume over aerodynamic shape.

Best 15 cubic feet

MeeFar 15 cu ft Roof Bag

Best for: Small cars and light travel loads

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

View on Amazon: MeeFar 15 cu ft Roof Bag

The MeeFar 15 cubic feet roof bag offers a compact storage solution for smaller vehicles or lighter loads. Constructed from 700D PVC tarpaulin, it provides 100% waterproof protection. Its dimensions are 44 inches long by 34 inches wide and 17 inches high. The design includes universal compatibility, working with or without existing roof racks. It comes with a combination lock and anti-slip mats for secure installation.

Pros

  • 100% waterproof 700D PVC tarpaulin shell
  • Universal fit for cars with or without roof racks
  • Includes combination lock and anti-slip mats
  • Folds into a storage box for compact transport

Cons

  • 15 cubic feet capacity is smaller than the 30 cubic feet competitors
  • Specs list weight as 100 kilograms, which is likely an error
  • Soft shell material offers less rigid protection than hard carriers

Good fit if

  • You need a compact carrier for a small car or SUV
  • You want a bag that fits without roof racks
  • You prefer a lightweight, foldable storage option

Skip if

  • You require more than 15 cubic feet of storage space
  • You need a hard-shell carrier for maximum impact protection
  • You are carrying very heavy or bulky items like large tents

Verdict: The MeeFar 15 Cu Ft Rooftop Cargo Bag is a practical choice for drivers with smaller vehicles or lighter travel needs who need a waterproof, rack-compatible soft shell. It suits those prioritizing compact storage and easy installation over maximum capacity.

Best 21 cubic feet

Sailnovo 21 cu ft Soft Roof Bag

Best for: moderate cargo needs without hard shells

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

View on Amazon: Sailnovo 21 cu ft Soft Roof Bag

This Sailnovo roof bag offers 21 cubic feet of storage in a soft shell design. It weighs 8.16 pounds and uses tie-down straps for installation. The waterproof construction protects your gear from rain. It fits cars without roof racks. This carrier is ideal for those needing moderate extra space without the bulk of a hard box.

Pros

  • 21 cubic feet capacity
  • Waterproof soft shell
  • Lightweight at 8.16 pounds
  • Tie-down strap installation

Cons

  • Smaller capacity than the 30 cubic feet options on this list
  • Soft shell offers less impact protection than hard cases
  • Requires manual strap tightening

Good fit if

  • You need more space than 15 or 19 cubic feet bags
  • You want a lightweight carrier that is easy to store when not in use
  • You drive a car without fixed roof rails

Skip if

  • You require the maximum 30 cubic feet capacity available
  • You prefer the security and durability of a hard shell
  • You need integrated locking mechanisms

Verdict: Sailnovo 21 Cu Ft Soft Shell Roof Bag fits drivers who need moderate cargo space without the weight and bulk of larger carriers. It is a practical solution for weekend trips where 21 cubic feet is sufficient.

Also great

RoofPax 19 cu ft Polyester Roof Bag

Best for: Secure installation on 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

View on Amazon: RoofPax 19 cu ft Polyester Roof Bag

The RoofPax 19 Cubic Feet Rooftop Cargo Carrier Bag offers 47.2 by 35.4 by 19.8 inches of storage. It is made from 100% waterproof polyester with dual zippers and double-seam technology. The bag installs using patented 4-door hook straps or standard roof racks. It weighs 12.4 pounds and includes 10 sturdy straps for secure attachment. This carrier fits vehicles with or without existing roof racks.

Pros

  • Patented 4-door hook straps for secure installation
  • 100% waterproof polyester shell with dual zippers
  • Fits vehicles with or without roof racks
  • Includes 10 sturdy straps and storage bag

Cons

  • 19 cubic feet capacity is smaller than the 20 to 30 cubic feet options on this list
  • 12.4 pound weight is heavier than lighter soft carriers
  • Limited to three color options: Black, Orange, and Grey

Good fit if

  • You need a secure fit on a car without roof racks
  • You prioritize waterproof polyester over PVC materials
  • You have moderate cargo that fits within 19 cubic feet

Skip if

  • You require a capacity larger than 19 cubic feet
  • You prefer a lighter carrier under 10 pounds
  • You need a carrier that expands beyond its fixed size

Verdict: RoofPax 19 Cu Ft Waterproof Roof Bag is a secure, waterproof option for drivers without roof racks who do not need maximum volume. It suits those prioritizing installation security and material durability over high capacity.

Best 20 cubic feet

Asinking 20 cu ft Waterproof Roof Bag

Best for: Compact vehicles and lighter luggage loads

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

View on Amazon: Asinking 20 cu ft Waterproof Roof Bag

The Asinking 20 cubic feet roof bag offers a compact storage solution for vehicles with smaller roof spaces. It measures 52 x 40 x 12-18.5 inches and uses 900D PVC tarpaulin for 100% waterproof protection. The design includes a metal ring strap system for easy installation on cars with or without racks. You get a secure, lockable carrier that folds flat for storage when not in use.

Pros

  • 100% waterproof construction using 900D PVC tarpaulin
  • Metal ring strap design simplifies installation
  • Lockable for added security
  • Fits vehicles with or without roof racks

Cons

  • 20 cubic feet capacity is smaller than the 30 cu ft alternatives
  • Soft shell lacks the rigid protection of hard cargo boxes
  • Height varies from 12 to 18.5 inches depending on load

Good fit if

  • You need a waterproof carrier for a car with limited roof space
  • You want a lightweight bag that folds flat for easy storage
  • You prefer a secure, lockable option for road trips

Skip if

  • You require maximum cargo volume for large family trips
  • You need a rigid shell for heavy or sharp items
  • You drive a vehicle with extremely low roof clearance

Verdict: Asinking 20 Cu Ft Rooftop Cargo Bag provides reliable waterproof storage for drivers who prioritize compact dimensions and easy installation over maximum capacity. It is the right choice for those with smaller vehicles or lighter luggage loads.

Specifications side by side

Spec Mockins 30 Cu Ft Soft-Shell Roof Bag FIVKLEMNZ 30 Cubic Feet Roof Bag Mockins 30 cu ft Soft-Shell Vinyl Roof Bag MeeFar 15 cu ft Roof Bag Sailnovo 21 cu ft Soft Roof Bag RoofPax 19 cu ft Polyester Roof Bag Asinking 20 cu ft Waterproof Roof Bag
Capacity 30 cu ft 30 cu ft 30 cu ft 15 cubic feet 21 cubic feet 19 Cubic feet 20 cu ft
Shell Type Soft-shell, 840D vinyl 840D PVC soft bag soft-shell vinyl 700D PVC tarpaulin Soft Shell polyester 900D PVC tarpaulin
Water Resistance Waterproof 100% waterproof waterproof 100% waterproof Waterproof 100% waterproof 100% waterproof
Security Combination lock Luggage lock combination lock combination lock not specified not specified Lock
Installation not specified Straps and door hooks not specified quickly and easily installed in minutes Tie-Down Strap door hook straps, 10 straps Metal ring strap design
Vehicle Compatibility With or without crossbars or roof racks With or without roof rack vehicles with or without roof rack not specified not specified fits cars with or without roof rack With or without roof rack
Dimensions 60 x 43 x 20 in 60 x 43 x 20 in 60 x 43 x 20 in 44" L x 34" W x 17" H 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
Recommended Use not specified Suitcases, tents, sleeping bags not specified not specified not specified not specified not specified
Vehicle Type Car Car Car, SUV, Truck Car Car Car Car
Size 30 Cubic Feet (60"x43"x20") 30 Cubic Feet 30 Cubic Feet 15 Cubic Feet 21 Cubic Feet 19 Cubic feet 20 Cubic Feet
Mount Type not specified Roof Mount Roof Mount Roof Mount Roof Mount Roof Mount Roof Mount
Lockable not specified Lockable not specified not specified not specified not specified Lockable
Includes Bag With Bag not specified With Bag not specified not specified not specified not specified
Weight 12.5 pounds 12 pounds 15.5 pounds 100 kilograms 8.16 pounds 12.4 pounds not specified
Color Black/Orange Black and Orange Black/Orange Black and Orange Black ['Black', 'Orange', 'Grey'] Black with Blue
Model MA-RB-30OR-60X43X20-88 30 Cubic Feet MA-RB-30OR-88-V1 15 Cubic Feet Sailnovo5033-FR Rooftop_Cargo_Carrier rooftop cargo bag

Frequently asked questions

What is the lightest 30 cubic foot roof bag available?

The FIVKLEMNZ 30 Cubic Feet Roof Bag is the lightest option at 12 pounds. It matches the Mockins capacity but saves half a pound. The dimensions are 60 by 60 by 20 inches. This makes it a solid choice if you prefer a lighter load on your vehicle roof.

Which 30 cu ft bag is the most budget-friendly?

The Mockins 30 cu ft Soft-Shell Vinyl Roof Bag is listed as the best budget option. It weighs 15.5 pounds, making it the heaviest in this capacity class. The model MA-RB-30OR-88-V1 offers high-volume storage for drivers who prioritize space over weight savings.

Are there smaller alternatives to the 30 cubic foot size?

Yes, several smaller soft-shell bags are available for lighter loads. The MeeFar 15 cu ft model measures 44 by 34 by 17 inches. The Sailnovo 21 cu ft bag offers a middle ground. The RoofPax 19 cu ft and Asinking 20 cu ft bags also provide compact storage solutions.

Do these soft bags fit vehicles without roof racks?

All listed products are designed for roof mount installation without factory racks. They use straps and hooks to secure to the vehicle body. The Mockins and FIVKLEMNZ 30 cu ft bags are specifically noted for high-volume storage on vehicles lacking racks. This applies to all soft-shell options in the list.

Which bag is best for small cars?

The MeeFar 15 cu ft Roof Bag is best for small cars and light travel loads. Its compact 44 by 34 by 17 inch size fits smaller roofs well. The Asinking 20 cu ft bag is also suitable for compact vehicles. It offers slightly more space while remaining manageable for lighter luggage.

Is there a lockable roof bag in this group?

The Asinking 20 cu ft Waterproof Roof Bag is explicitly listed as lockable. This feature adds security for your cargo. Other bags like the Mockins and FIVKLEMNZ do not have this attribute listed in their specs. If locking capability is essential, the Asinking model is the clear choice.

How do the dimensions of the 30 cu ft bags compare?

The Mockins 30 Cu Ft Soft-Shell Roof Bag measures 60 by 43 by 20 inches. The FIVKLEMNZ 30 Cubic Feet Roof Bag is 60 by 60 by 20 inches. The second Mockins vinyl model matches the first at 60 by 43 by 20 inches. These sizes affect roof coverage and wind resistance.

See also