Soft Foldable Roof Box 420D 425 L

425 L soft roof box: 425 extra liters without buying a hard shell

This soft roof box adds 425 liters above the roofline and solves the holiday departure problem in one go: the third suitcase finds its place, sleeping bags leave the back seat, and rear passengers get their legs back. The difference with a hard shell is most noticeable on the return: this one folds up and fits in a closet eleven months a year, while a hard shell monopolizes a garage wall.

Frameless, foldable: the format that changes how a roof bag is used

The bag has no frame. When full, it takes the shape of its contents and uses all available volume; when empty, it folds up and fits in a 28 x 28 x 4 cm package. It is the only foldable roof box that you spontaneously pull out for a three-day weekend, because it requires neither two people to handle nor storage space. The generous size, listed at 43 x 50 inches (approximately 109 x 127 cm), covers most of the roof of a sedan or SUV.

420D fabric, double-stitched seams, and two-way zipper

The fabric is 420D, a technical weave renowned for its strength-to-weight ratio: flexible enough to fold without creasing, dense enough to withstand strap friction and highway spray. The whole is listed as waterproof, allowing you to drive in the rain without finding a soaked load upon arrival. Eight buckle straps and double-stitched seams ensure the assembly stays secure at steady speeds. The two-way zipper can be closed from either end and limits water ingress while preventing a slider from opening on its own while driving. Total package weight: 1.7 kg. Listed brand: YOSOO.

• 425 liters of usable volume — the equivalent of several suitcases removed from the cabin.
• Waterproof 420D fabric — rain, dust, and spray kept outside.
• 8 buckle straps — firmly presses the bag against the roof.
• Foldable roof bag — stores in a closet, unlike a hard shell.
• Two-way zipper — access from both sides, enhanced sealing.
• Compatible with bars, rails, or baskets — and even vehicles without bars, with precautions.

Installing your roof bag on the car, with or without bars

Load the bag on the floor: hard objects in the center, textiles on the edges, balanced distribution from front to back. Close the zipper, lift the assembly onto the roof, then pass the straps around the crossbars or rails and tighten them diagonally until nothing moves by hand. Installing a roof bag without bars is still possible by passing the straps through the door pillars with the doors open — but it requires moderate speed, protection of the seals, and tension checks at every stop. Always respect the maximum roof load indicated by your vehicle manufacturer.

Should you prefer a soft bag or a hard box?

The hard box wins on two points: aerodynamics at high speeds and key locking. The soft bag wins on everything else: price, actual volume for the same footprint, off-season storage, and especially the ability to accommodate irregular shapes that a hard shell rejects. For holiday use, camping, or occasional moving, a waterproof soft roof box meets the need without tying up a budget or a garage wall. Just remember not to leave anything valuable in it during prolonged storage.

Loading the roof of your car, our playground

Roof cargo is a field where quality pays off: fabric that is too thin will tear at the first gravel, and an unprotected zipper will turn your belongings into a sponge. We favor serious fabric weights and generous strapping. Have a question about the volume suitable for your vehicle before ordering your car roof bag? Our French-speaking team will answer you.

Free up 425 liters above the roof and set off with everything on board: order your soft roof box.

Type: Soft roof box / roof cargo bag
Brand: YOSOO
Compatibility: Universal — crossbars, side rails, roof baskets, or without bars with precautions
Years: Depending on the vehicle version
Volume: 425 liters
Listed dimensions: 43 x 50 inches (approximately 109 x 127 cm)
Material: 420D fabric
Color: Black
Water resistance: Waterproof fabric, two-way zipper
Attachment: 8 buckle straps, double-stitched seams
Structure: Frameless, foldable after use
Package dimensions: 28 x 28 x 4 cm
Package weight: 1.7 kg
Contents: 1 roof cargo bag