The complete guide
The Sailnovo 559L Waterproof Roof Bag: A Buyer's Guide
Fitting everything in for a family trip, a camping holiday or a run to the tip is rarely straightforward. The Sailnovo 559L Waterproof Roof Bag turns the roof of your car into usable, weatherproof storage without the cost or bulk of a hard roof box.
Built for real weather
It is made from Oxford fabric, triple-layer 1000D PVC lining, chosen to keep water out through proper UK weather rather than just light drizzle. Seams and zips are sealed or covered with a protective flap so rain and motorway road spray running over the roof does not find a way in.
Fits your car
No roof rack required — it straps directly to your car using the included door hooks, so it also fits cars without rails or bars. Once strapped down it sits flush and stable at motorway speeds.
559L of extra space
With 559 litres (19.7 cubic feet) of capacity, it swallows the awkward items that do not stack neatly in a boot — tents, sleeping bags, holdalls, folding chairs and more — freeing up the cabin and boot for passengers and everyday shopping.
Packs away small
Because it is soft-sided rather than a rigid shell, it folds down to fit under a garage shelf or in a cupboard between trips, which is the main practical complaint people have with hard-shell roof boxes.
Who it suits
Anyone who regularly runs out of boot space for family trips, camping, festivals or the school-holiday getaway. If your car has no roof rack, check the "roof rack required" spec above before ordering — several models here work with door hooks alone.