Sailnovo 20 Cu Ft Waterproof Roof Luggage Bag Soft Roof Box Overview
- Brand: Sailnovo
- Material: Polyvinyl Chloride (PVC)
- Colour: Classic Gray-Green
Overview
Sailnovo 20 Cu Ft Waterproof Roof Luggage Bag Soft Roof Box – The Sailnovo 20 Cu Ft Waterproof Roof Luggage Bag is designed to maximise your vehicle’s storage capacity, making it an ideal solution for families, adventure seekers, or anyone needing extra space while travelling. This soft roof box fits most vehicles with roof racks, crossbars, or side rails, allowing you to transport your belongings securely without compromising passenger comfort.
Constructed from durable polyvinyl chloride (PVC), this waterproof roof bag is resistant to tears and abrasion, making it perfect for road trips or outdoor adventures. With ample space for luggage, camping gear, or sports equipment, it ensures you have everything you need for your journey, enhancing travel convenience and comfort.
Key benefits
- Maximises vehicle storage with 20 cu ft capacity.
- Waterproof design protects contents from rain and moisture.
- Durable PVC material resists tears and abrasion.
- Aerodynamic shape ensures low energy consumption and quiet driving.
- Compatible with most vehicles featuring roof racks or crossbars.
- Easy to store; folds into a compact size when not in use.
- Equipped with high-safety accessories for secure travel.
- Designed for family trips and adventures, enhancing travel convenience.
How to use
- Ensure your vehicle is compatible with the roof bag by checking for roof racks, crossbars, or side rails.
- Fill the roof bag completely to maintain its shape and prevent it from collapsing during use.
- Position the bag on the roof, leaving 8 inches of clear space in front for proper installation.
- Secure the bag using the provided straps, ensuring they are tightened and fastened to avoid noise while driving.
- If your vehicle lacks a roof rack, use the 6-door hooks for installation, ensuring they are properly attached.
- Check the straps at fuel stops to ensure they remain secure during your journey.
- For optimal performance, avoid placing hard or sharp objects inside the bag to prevent tearing.
Specifications
- Closure type: Zipper
- Automotive Fit Type: Universal Fit
- Item volume: 20 Cubic Feet
- Manufacturer: Sailnovo
- Material: Polyvinyl Chloride (PVC)
- Model: Sailnovo 5378-Orange
- Mounting type: Roof Mount
- Shell type: Soft
- Water Resistance Level: Waterproof
What’s in the box
- Rooftop cargo carrier
FAQs
Is this cargo carrier roof bag waterproof?
Yes, the roof bag is waterproof when used correctly with the zipper and flap. It is also fade-resistant for protection against dust, sun, wind, and rain.
Will this cargo carrier fit any type of car?
This roof bag works with most vehicles that have roof racks, crossbars, side rails, or four doors with secure frames. It is not designed for two-door cars, very small cars, soft tops, open roofs, or cars with sunroofs.
Can I drive at highway speeds with this roof bag?
Yes, you can drive at highway speeds up to 65 mph (105 km/h) as long as the bag is filled, straps are tightened, and it is installed correctly.


Gunner265 –
Got a great deal with this via a money off voucher. Using to travel from Brighton to Wales this week. Holds a fair bit of gear. . Like the colour. Well thought out design.
Dave S. –
Great for that extra luggage! Well made easy to fit and felt secure. I did keep to speed limits (UK) You do get a bit of wind noise and will reduce MPG a wee bit.
Anke Lepschies –
Gute Qualität
Waren positiv überrascht. Alles ordentlich verstaut in einer kleinen Tasche. Das Material ist besser als erwartet. Auch die Verarbeitung schaut ok aus. Sogar ein Zahlenschloss ist dabei. Mehr dazu nach dem Gebrauch im Urlaub im Juni.
Jack BORDEAUX –
tient tres bien sans barres de toit.
Testé sans barres de toit sur près de 2000km sans aucun problème.Tres bon article que je recommande vivement.
Joey Legault –
Waterproof and Durable
Zipper is heavy Duty, only used once so far but worked perfectly. Straps long and easy to use with clips.
Cliente Discount Delights –
Fantastico
Montato su hyundai ix35 senza barre non si sente, comodissimo e molto capiente.
charlene leaf –
Good product
Very satisfied with this used it for a 1400 miles trip and it stayed in place the whole trip. It kept everything dry .
Kindle Customer –
Very easy to assemble without roofrack. Taken for a motorway trial and no movement of bag. So roomy- we got so much of our camping gear in here. Seems really sturdy. Small amount of rain showed no penetration but it says it is not totally waterproof against severe weather so we are going to use tarpaulins around the items to ensure they stay dry whatever the weather. Folds down to really small item so great to store. Really impressed for the price.
Amazon Customer –
This product is brilliant. I used it with our roof rack for a little extra security and peace of mind.There’s loads of room in it, very easy to use and extremely strong.The zips to close it and then the flap with velcro is strong and durable and very waterproof. We had no issues with anything being damp or wet.The securing straps work really well and are strategically placed to allow for multiple methods of use.Others have failed to get it back in the supplied storage bag but I found it easy.Would I buy again if need be – absolutely.Do I recommend this – 100%
Dave S. –
Great for that extra luggage! Well made easy to fit and felt secure. I did keep to speed limits (UK) You do get a bit of wind noise and will reduce MPG a wee bit.
Cuthbertcringeworthy –
Marvellous things. Low cost and no need to store or drive around with a massive empty box on the roof. Better for fuel efficiency I think than a protruding box with a roof rack and bars due to its ability to hug the roof and decrease in size for small loads.
Paul P. –
excellent bit of kit can be fitted to any vehicle with loads of storage space.I loaded it with all our light tent and camping equipment packing it full this left loads of space in my boot.
Johnny Mc –
Brilliant item ❤️, I used it to take to Creationfest camping in Cornwall. Throughout it was steady, solid and easy to put up. It rained for 4 days, yet all was dry when I was ready to repack for our journey back. Much better than a conventional roof plastic box, and for 1/2 the price.
Amazon Customer –
Good except for the fact that you really need a rail bar at the front of the roof to anchor the box and stop the front part of it sliding back. Apart from this I found it very roomy and completed a return journey from Kent to the Lake District without any problems apart from the issue raised.
Claire W. –
Amazing roof bag. Easy to use and it fit securely. No noise from it being in the roof. Easy and small to pack when not in use.
Russell G. –
Great cargo carrier
This rooftop bag worked out beautifully. We used it to hold our luggage and it endured 80+ mph speeds, rain and snow. It performed perfectly. It holds a lot of stuff, projects everything and is easy to use. This thing is legit.
Luca Mariotti –
Ottimo rapporto qualità-prezzo, molto capiente e resistente
Ho acquistato questo box da tetto per un viaggio estivo e devo dire che ha superato le mie aspettative. Avevo bisogno di spazio extra per le vacanze e questo prodotto si è rivelato la soluzione perfetta.Montaggio e utilizzo:Il montaggio è abbastanza semplice, anche se la prima volta ho impiegato circa 20-25 minuti per capire bene come fissare tutto correttamente. Le cinghie sono lunghe (forse anche un po’ troppo) ma questo permette di adattarle a qualsiasi tipo di auto. Una volta capito il meccanismo, montarlo e smontarlo diventa molto più veloce.Capienza:La capienza è davvero notevole! Ci ho messo dentro due valigie grandi, una media, zaini e borse varie. Praticamente tutto il necessario per quattro persone per una settimana. È incredibile quanto spazio offre per il prezzo che costa.Prestazioni in viaggio:Ho fatto circa 800 km tra andata e ritorno, con tratti autostradali a velocità sostenuta. Il box è rimasto perfettamente fermo, si sentiva un leggero rumore ma niente di esagerato.Consigli utili:- Caricate la parte anteriore con gli oggetti più pesanti per evitare che l’aria lo sollevi (mi è successo, ma nulla di preoccupante)- Riempitelo bene per evitare spazi vuoti che potrebbero causare prese d’aria (anche se con la stretta delle cinghie si mantiene abbastanza bene)- Tirate bene le cinghie prima di partire e verificate dopo i primi chilometri (nel primo viaggio di andata, ogni tanto mi fermavo per controllare, ma tutto rimaneva sempre a sui posto)Praticità:Quando non serve, si piega facilmente e occupa pochissimo spazio nel bagagliaio o in garage/cantina. Questa è una caratteristica fantastica rispetto ai box rigidi tradizionali che costano molto di più e sono difficili da riporre, e infatti è stata la cosa che più mi ha fatto scegliere questa soluzione.Sono davvero soddisfatto dell’acquisto. Per chi come me ha un uso sporadico e cerca un’alternativa economica ai cofani rigidi, questo prodotto è assolutamente perfetto. Lo consiglio senza dubbi!
sandra flores –
Avaliação
Excelente produto. Recomendo.
Simon L. –
Very good bag for the price.
Love this bag ! Very easy to use, built a wooden platform so it could hold my spare tire without crushing the roof and it works great. Holds a lot of stuff.The real test will be to see how long it lasts being exposed to UV rays for a prolonged period of time. Definitely recommend, for now.
oscar daniel torres –
Excelente calidad y buen precio
Se ve muy bien el producto, resistente y durarero. Falta probarlo, pero hay videos en YouTube de gente de Espeña y USA que incluso con nieve aguanta.