
















Convertible Motorcycle Tail Bag Backpack
£92.90
10% off your first order
with the code BIENVENUE10
Offer valid until Sunday 25 October
- Free delivery
- Returns within 30 days
- Secure payment
Specifications
- Dimensions (L x W x H): 43 x 29 x 20 cm
- Extended dimensions: 43 x 29 x 30 cm
- Expandable height: +10 cm
- Weight: 1.3 kg
- Materials: carbon fibre and Oxford fabric
- Waterproof
- Rain cover included
- Colours: grey, blue, green, red
- Accessory included: mounting strap
- Helmet compatibility: full face helmet
- Mounting: motorbike rear seat
- Carry: can be worn as a backpack
Description
Expandable motorcycle tail bag backpack, the elegant and practical ally for every ride
Want to ride light without giving up the essentials, your style or your safety? This expandable motorcycle tail bag backpack turns your rear seat into smart storage, then is worn as a backpack as soon as you get off the bike. It combines a high-density Oxford fabric with a carbon fibre-look finish, giving rigid, elegant protection against rain and wear. It takes a full face helmet, is waterproof with a rain cover included, weighs about 1.3 kg and grows from 43 x 29 x 20 cm to 43 x 29 x 30 cm.
Why choose this expandable tail bag backpack
Designed for the road, it fits on the rear seat with secure straps, and its compact profile stays stable and aerodynamic. Its capacity adapts to your day, from 43 x 29 x 20 cm to 43 x 29 x 30 cm thanks to a 10 cm extension, ideal for carrying gloves, a light jacket or work things without clutter.
A waterproof, convertible seat bag
The tough coating and the rain cover supplied protect your belongings, whatever the weather. It turns into a backpack instantly with its built-in straps, a motorcycle seat backpack that is perfect in town as well as on rides. Waterproof, with a rain cover included, it keeps your things and your full face helmet dry on daily trips as well as road trips.
Room for a helmet and details that make the difference
Designed to hold a full face helmet, it becomes a real motorbike helmet bag when you park. Weighing about 1.3 kg, it stays comfortable and easy to handle. Choose your touch of style, grey, blue, green or red, and ride with peace of mind with its useful accessories, the rain cover and the straps. Popular with many bikers, it combines practicality, understated looks and durability.
Can’t decide between several formats? If you ride a motorbike, discover our large-volume motorcycle laptop backpack in our collection of motorcycle backpacks. Ready to ride, your expandable tail bag backpack becomes the essential companion that makes the most of every outing, from town to long rides. Make the most of it now, the road is waiting.
For the office, also discover our expandable laptop backpack with an understated style, waterproof, 20 to 35 litres, with a USB port and room for a laptop.
Delivery & returns
Delivery
Free tracked delivery to the United Kingdom, in 7 to 12 working days.
As soon as your order is dispatched, you receive an email with a tracking link.
Returns
You have 30 days from delivery to request a return. The 14-day statutory right to cancel is included in this period.
See our returns policy for the conditions.
Why choose us?
At Galerie Sac à Dos, we believe a bag does more than carry your things.
It goes with you through your days, your plans and your getaways, and reflects the way you live.
That is why every style in our collection is carefully selected to combine style, comfort and durability, with no compromise.
Backpacks designed for real life
For work, lessons, travel, hiking or family days out, our bags adapt to every use.
Well-planned compartments, sturdy materials and careful comfort. Every detail counts to make your everyday life easier.
Style and function together
Every style combines careful design with modern practicality.
Classic, sporty or colourful, your bag stays practical, comfortable and true to your style.
Tested quality, lasting finishes
We favour hard-wearing materials (premium canvas, vegan leather, high-density polyester) and reinforced stitching, for a bag that keeps its shape and lasts.
A responsible and transparent selection
No overproduction and no empty promises, only pieces chosen for their reliability, their comfort and their timeless look.
Your satisfaction first
Free delivery, easy returns within 30 days and responsive customer service, because buying online should be as simple and enjoyable as planning your next adventure.
About Galerie Sac à Dos
At Galerie Sac à Dos, we believe a good bag can change the way you live, travel and express yourself.
We don’t make bags, we select them. Every style is carefully chosen from suppliers who share our values: quality, comfort and lasting style.
From the clean-lined city bag to the rugged hiking backpack, and the kids’ styles too, every piece reflects our standards: thoughtful design, reliable materials and a timeless look.
No passing trends, no compromise. Just bags made to stay with you for a long time, with confidence and personality.
Frequently Asked Questions
Are the materials durable and environmentally friendly?
We favour suppliers that use strong, quality materials, selected for their durability and their lower impact on the environment.
Does the product look exactly like the photos on the site?
Absolutely. All our photos are taken of the real products, with no misleading retouching. Colours may vary slightly depending on the lighting or the screen you use.
How do I track my order?
As soon as your order is dispatched, you receive an email with a tracking link to follow your parcel in real time.
Is payment on your site secure?
Yes, we use SSL security, which keeps your data private and protected. Your payment details are never stored.
What should I do if my parcel does not arrive or arrives damaged?
Contact our customer service straight away. We will open an investigation with the carrier and, if needed, arrange a replacement or a refund as quickly as possible.
How can I contact you with a question before or after my order?
You can contact us through the contact form on the site or by email at contact@galeriesacados.com. We reply within 24 working hours.





