Mockins 40 Cu Ft XXL Car Roof Bag 72x48x20 Soft-Shell 840D with Straps & Lock — Waterproof, Heavy-Duty

Mockins 40 CuFt XXL Car Roof Bag is a large-capacity, soft-shell rooftop cargo carrier (72"×48"×20") made from 840D abrasion-resistant material and sold with straps, hooks, a roof mat, lock, and carry bag.

This rooftop luggage bag expands vehicle carrying capacity without needing crossbars. Built from a heavy-duty 840D vinyl, the carrier uses a layered, waterproof approach with covered zippers and reinforced seams to protect gear during travel. The included accessory kit lets you attach the bag in multiple ways—via ratchet straps, buckle straps, door and trunk hooks—so it works on cars, SUVs, and many vehicles that lack factory roof racks.

How much will fit in the 40 cu ft Mockins roof bag?

This XXL car roof bag provides approximately 40 cubic feet of storage—enough for several suitcases, duffels, camping gear, or bulky moving items. Its rectangular footprint (72"×48"×20") makes it simple to pack irregular shapes and stack soft goods.

• Dimensions: 72" long × 48" wide × 20" tall for organized, layered packing.
• Volume: ~40 cubic feet, suitable for family trips or larger loads.
• Holds: suitcases, sleeping bags, tents, seasonal items, or multiple duffels.

Will this rooftop carrier keep my gear dry and protected?

Mockins designs this soft-shell carrier from abrasion-resistant 840D vinyl with reinforced seams and a protective zipper flap to resist moisture and wear. While engineered to shed water and resist splashes, always secure the zipper flap and avoid driving in prolonged deep water to protect contents.

• Material: 840D vinyl resists abrasion and light water exposure.
• Zippers: covered by a protective flap to reduce water entry.
• Seams: reinforced stitching for longer-term durability on the roof.

How do I install the bag on different vehicles?

The carrier includes a versatile set of fasteners so you can secure it to cars with or without crossbars. Options include threading ratchet straps through the vehicle, attaching buckle straps to side rails, or using door and trunk hooks; a roof mat helps stabilize and protect the vehicle finish beneath the bag.

• Installation methods: ratchet-through, buckle-to-rails, or door/trunk hook setups.
• Included hardware: 3 ratchet straps, 3 buckle straps, 6 door hooks, 2 trunk hooks.
• Protection: non-slip roof mat reduces movement and shields paint.

What accessories come with the Mockins rooftop luggage carrier?

The package is a complete rooftop storage system ready for immediate use. All mounting straps, a protective roof mat, a combination lock for the zippers, and a carry bag for compact storage are included so you can pack, secure, and stow the carrier when not in use.

• Accessory kit: ratchet and buckle straps, door & trunk hooks for versatile mounting.
• Security: combination lock to deter tampering while parked or traveling.
• Storage: dedicated carry bag holds the empty roof bag and small accessories.

Who this product is for: travelers, families, and anyone needing extra roof storage without permanent roof racks. Choose this Mockins 40 CuFt XXL Car Roof Bag if you want a large, soft-sided rooftop carrier that pairs rugged, weather-resistant construction with a full accessory kit for flexible mounting. It’s suited for weekend getaways, moving soft items, or adding seasonal storage while keeping the vehicle’s roof paint safeguarded by the included mat.