Expandable Backpack
BANGE
Expandable
Backpack
A large-capacity waterproof backpack by BANGE with USB charging and expandable design. 36–55 L capacity in two configurations — Black Large and Black Expandable. Built for men who need a bag that handles a laptop, luggage attachment, and a full day’s load without compromise.
Capacity
Port
"A bag too small for a weekend trip, a dead phone before the gate, and a rucksack that won’t sit on a suitcase handle are three versions of the same problem — a 36–55 L expandable, waterproof backpack with USB charging and a luggage strap is the travel carry that solves all three."
The waterproof outer keeps a laptop, documents, and travel essentials dry through rain, transit, and unexpected weather — the bag that removes the need for a separate rain cover or a last-minute rethink every time conditions change between the hotel and the terminal.
The external USB port connects to a power bank stored inside the bag, keeping a phone or earbuds charged without opening the bag or hunting for a socket — the feature that keeps devices topped up from departure to arrival on a long travel day or a full day on the move.
The expandable construction takes the bag from a streamlined 36 L for a day trip to a full 55 L for a longer journey — the flexibility that removes the need to own two separate bags for two different trip lengths, without the bulk of carrying a half-empty large bag every day.
The rear luggage strap slides over a suitcase trolley handle, keeping the backpack secure and hands free through airports, stations, and hotel lobbies — the detail that makes the bag a proper travel companion rather than a bag that has to be carried separately alongside a suitcase.
A backpack built
for the journey,
the terminal, the trip.
BANGE — 36–55 L expandable, waterproof, USB charging, luggage strap. The travel backpack that adapts to the trip rather than the other way around.
Frequently Asked Questions
Delivery times are estimates from dispatch date and may vary due to customs clearance, carrier capacity, public holidays, or other factors outside our control. All orders include tracked shipping.
Europe
Albania: 11–21 days | Armenia: 11–21 days | Austria: 9–21 days | Belgium: 9–17 days | Bosnia: 16–26 days | Czech Republic: 11–21 days | Denmark: 9–21 days | Estonia: 11–21 days | Finland: 11–21 days | France: 11–21 days | Germany: 9–16 days | Greece: 9–17 days | Hungary: 11–21 days | Ireland: 10–19 days | Italy: 8–17 days | Kazakhstan: 11–21 days | Luxembourg: 8–21 days | Netherlands: 7–13 days | Norway: 9–18 days | Poland: 10–19 days | Portugal: 11–21 days | Romania: 9–17 days | Serbia: 11–26 days | Spain: 11–20 days | Sweden: 8–16 days | Switzerland: 9–21 days | Ukraine: 11–26 days | United Kingdom: 9–16 days
Americas
Argentina: 21–41 days | Bahamas: 21–41 days | Barbados: 21–41 days | Brazil: 21–26 days | Canada: 9–16 days | Chile: 9–17 days | United States: 9–16 days
Asia-Pacific
Australia: 8–15 days | Japan: 21–41 days | Malaysia: 11–20 days | New Zealand: 9–16 days | Singapore: 11–20 days | Sri Lanka: 11–20 days
Africa & Middle East
Nigeria: 11–21 days | South Africa: 21–31 days
We offer a 30-day hassle-free returns policy. If you're not completely satisfied with your purchase, simply return it within 30 days for a full refund.
Yes, all payments are secured with 256-bit SSL encryption. We accept all major payment methods including Visa, Mastercard, American Express, and PayPal.
Yes, we offer Klarna as a payment option. Simply select Klarna at checkout to split your payment into flexible installments.
Once your order is dispatched, you'll receive a tracking email with a link to track your package in real-time.