MARKSIGN Truck Bed Cargo Bag Review: Specs, Pros and Cons

What stands out

• 34 cubic feet of storage space for family luggage or camping gear
• Waterproof PVC shell with welded seams and a storm-flap zipper
• Four built-in ratchet straps that tuck away for safe travel
• Three-sided zipper allows access without unloading the entire bag

Who it fits

Key specs explained for Marksign

Capacity: 34 cu ft

This volume allows the bag to hold roughly five to six 28-inch suitcases. It offers more space than many soft-sided roof bags. You can store camping gear, tools, or family luggage without stacking items tightly. This capacity suits families needing bulk storage for road trips or moving. It provides a large, single compartment compared to smaller roof boxes.

Dimensions: 57 x 48 x 22 in

These measurements define the bag's footprint on your truck bed. The 57-inch length fits most full-size pickup beds. The 22-inch height is lower than many hard roof boxes, keeping your center of gravity lower. This profile reduces wind noise and drag while driving. You should verify these dimensions match your specific truck bed size before purchasing.

Shell Type: PVC

PVC is a durable, flexible plastic material used for the bag's outer layer. It resists tears and punctures better than thin fabrics. This material supports the waterproof claims by blocking water ingress. You get a rugged surface that handles rough gear like tools or gravel. PVC is common in heavy-duty cargo carriers for its balance of strength and weight.

Water Resistance: Waterproof

The bag uses high-frequency welded seams to prevent water entry. There are no needle holes for leaks. A storm flap covers the zipper for extra protection. This feature keeps your gear dry in rain or snow. You do not need to add separate tarps or waterproofing sprays. This level of protection matches many hard-shell roof boxes for weatherproofing.

Vehicle Compatibility: Fits all full-size pickup trucks

This bag is designed for full-size pickups like Ford F-150 or Chevy Silverado. It does not fit mid-size trucks or SUVs directly. You must have a truck bed to use it. This compatibility simplifies your search if you own a standard pickup. It offers a versatile storage solution for various truck models without needing specific mounting hardware.

Design and Build Specs

The shell is made from heavy-duty PVC. According to the listing, the material is high-frequency welded at the seams. This method removes needle holes that often cause leaks in stitched bags. A #10 vinyl-coated zipper sits under a hook-and-loop storm flap. You must close the zipper fully and lay the flap down for full weather protection. This design blocks rain, snow, and road dust.

The bag measures 57 by 48 by 22 inches. It weighs 10.3 pounds. The layout includes a three-sided zipper running across the top and down both sides. This allows you to reach items at the bottom without unloading everything first. Two reinforced side handles help when carrying the full bag. It fits all full-size pickup trucks, including Ford F-150, Chevy Silverado, GMC Sierra, Ram 1500, Toyota Tundra, and Nissan Titan.

Four built-in ratchet straps secure the bag to your bed anchors. You tighten them by hand for a rattle-free hold. When not in use, the straps tuck into corner hook-and-loop shields. This prevents dangling straps from flapping at highway speeds. The color is black. The model number is RV108-L. This configuration keeps your gear organized and secure while driving.

Setup and everyday use

You place the bag in your truck bed and align it with the bed anchors. The listing confirms it fits all full-size pickup trucks, including Ford F-150, Chevy Silverado, GMC Sierra, Ram 1500, Toyota Tundra, and Nissan Titan. You do not need adapters or special mounts. The four built-in ratchet straps attach directly to your existing tie-down points. You tighten them by hand. This creates a secure hold that prevents rattling at highway speeds. When you are done, you tuck the straps into the corner hook-and-loop shields. This keeps them from dangling or flapping while you drive. Loading gear is straightforward. The 34 cubic foot capacity holds roughly five to six 28-inch suitcases. You can fill it with camping equipment, tools, or luggage. Accessing your items is flexible because the zipper runs across the top and down both sides. You can open the side zippers to reach items at the bottom without emptying the entire bag. Two reinforced side handles allow two people to carry the bag when it is full. The PVC shell and welded seams protect your gear from rain, snow, and road dust. You simply close the zipper and pull the storm flap down for full weather protection.

Before you buy this cargo bag

You need to verify your truck bed dimensions before ordering. The listing states it fits all full-size pickups, but you should measure your specific bed length and width. The bag measures 57 by 48 by 22 inches. Ensure your anchors align with the four built-in ratchet straps. You will need to clean the PVC shell occasionally. Use mild soap and water to remove dirt and road grime. Avoid harsh chemicals that might degrade the material. Store the bag in a cool, dry place when not in use. This soft-sided option offers more flexibility than hard roof boxes. It sits lower in your truck bed, keeping your center of gravity low. You do not need a roof rack or crossbars. This makes it a practical choice for trucks without roof accessories. It provides ample space for tools, camping gear, or luggage. The three-sided zipper allows easy access without unloading everything first.

Check before you buy

• Measure your truck bed length and width to ensure a proper fit.
• Check that your truck bed anchors align with the four ratchet straps.
• Verify the 57x48x22 inch dimensions clear your tailgate when closed.
• Confirm you have mild soap and water for regular PVC cleaning.

The product at a glance

1

Marksign 34 cu ft Truck Bed Cargo Bag

Best for: Full-size pickup owners needing large waterproof storage

Capacity

34 cu ft

Shell Type

Heavy duty PVC

Opening

3-sided zipper

Water Resistance

Waterproof, weatherproof

Installation

4 built-in ratchet straps

Vehicle Compatibility

Full-size pickup trucks

View on Amazon: Marksign 34 cu ft Truck Bed Cargo Bag Affiliate link

This MARKSIGN truck bed cargo bag offers 34 cubic feet of storage in a 57 x 48 x 22 inch PVC shell. It weighs 10.3 pounds and features waterproof, high-frequency welded seams with a storm-flap zipper. The bag includes four built-in ratchet straps for secure attachment to full-size pickup trucks. You can access contents via a three-sided zipper, and it includes two reinforced side handles for carrying. It fits models like the Ford F-150 and Chevy Silverado.

Pros

• 34 cubic feet capacity holds 5-6 large suitcases
• Waterproof PVC shell with welded seams and storm flap
• Four built-in ratchet straps tuck away when not in use
• Three-sided zipper allows access without unloading everything
• Fits all full-size pickup trucks including Ram 1500 and Tundra

Cons

• 10.3 pound weight is substantial for a fabric bag
• Limited to full-size pickup trucks only
• No internal dividers or compression straps mentioned

Good fit if

• You need to transport large items like camping gear or tools
• You want a waterproof solution for rain or snow exposure
• You drive a full-size pickup truck and need secure tie-downs

Skip if

• You drive a mid-size or compact pickup truck
• You prefer a rigid hard-shell carrier for maximum security
• You need to fit the bag in a smaller vehicle bed

Verdict: MARKSIGN 34 CuFt Truck Bed Cargo Bag is a practical choice for owners of full-size pickups who need a large, waterproof storage solution. It suits those prioritizing capacity and weather protection over rigid security.

Specifications side by side

Frequently asked questions

See also

• marksign truck bed cargo bag alternatives
• best roof cargo boxes under 150
• wildfinder truck bed tent review
• tiphope inflatable truck bed tent review