AlltoAuto 38 cu ft Truck Bed Cargo Bag — Waterproof 600D PVC, Heat-Welded Seams, Heavy-Duty Straps

AlltoAuto's 38 cubic-foot truck bed cargo bag is a stormproof, heavy-duty PVC luggage carrier engineered to protect oversized loads and fit all full-size pickup beds.

Whether you're moving furniture, heading out for a long family trip, or hauling bulky gear, this cargo bag gives you a weatherproof, high-capacity option that uses your truck bed as a secure cargo hold. Built from 600D PVC with heat-welded seams and a reinforced strap system, it’s designed to resist highway winds and heavy rain while making loading and unloading straightforward.

How much gear can this bag actually hold?

The AlltoAuto cargo bag provides a roomy 38 cubic feet of storage—almost double many standard rooftop or trunk bags—so it accommodates large, irregular items that won’t fit elsewhere. Its rectangular profile maximizes truck-bed floor space for efficient packing and stacking.

• 38 cubic feet capacity for oversized luggage, boxes, camping gear, and sports equipment
• Designed to use the full length and width of a full-size pickup bed
• Folds compactly into the included storage pouch when empty

Will it keep my cargo dry in bad weather and at highway speeds?

Yes. The shell is made from 600D heavy-duty PVC and uses heat-welded seams instead of stitched seams, eliminating needle holes that let water in. A wide waterproof 3-side zipper sits under a protective flap to shed rain and wind at highway speeds.

• 600D PVC fabric resists tears and repels water
• Heat-welded seams (no needle holes) for full storm protection
• Waterproof three-side zipper covered by an extra-wide flap

How does it stay secure while I’m driving?

Security on the road comes from four reinforced heavy-duty straps that anchor the bag to the truck bed, preventing shifting even at highway speeds. The straps are designed to hold tension and keep the load stable during turns, braking, and crosswinds.

• Four reinforced straps for dependable attachment to bed anchors
• Built to remain stable at highway speeds (manufacturer-rated performance)
• Low-profile design minimizes wind lift and drag

Will this fit my pickup bed and how easy is it to load?

The bag is sized to fit full-size pickups such as the F-150, Silverado, RAM, and Sierra while using the bed’s footprint efficiently. A wide three-side zipper provides easy, single-person access so you can load bulky or heavy items without wrestling the bag open.

• Designed for full-size truck beds to maximize usable area
• Rugged three-side zipper allows full top and side access
• Folds down into the included storage bag when not in use

Who this is for: If you frequently transport large or awkward items that don’t fit inside your cabin or a rooftop box, or you want a weatherproof way to use your truck bed for long-distance hauling, this AlltoAuto cargo bag is built to handle the job. It’s ideal for movers, road-trippers, outdoor enthusiasts, tradespeople needing dry gear protection, and anyone who wants a durable, easy-to-secure solution for full-size pickup beds.