Vacuum Compression Travel Backpack — 35–45L Expandable Carry-On
The flagship of the Shulen travel system: a built-in vacuum compression chamber packs up to 65L of soft clothing into a sleek 20-inch carry-on, while the water-resistant shell, USB pass-through port, combination lock and clamshell opening handle everything else a business trip throws at it.
A Carry-On That Outpacks Bags Twice Its Size
Most “expandable” backpacks just add a zipper. This one adds a genuine vacuum compression chamber, a suitcase-style opening and security hardware — features end customers notice, review and reorder.
- Up to 65L packing capacity — compression chamber removes air from soft garments
- 35L → 45L expansion — one bag for day trips and week-long journeys
- Clamshell opening — packs flat like a suitcase, no top-loading digging
- Anti-theft combination lock + reflective strip + water-resistant shell
- USB pass-through port — charge without opening the bag
Engineered for the Way People Actually Travel
Vacuum Compression, Built In
Jackets, sweaters and bulky layers lose their air — not their shape. The integrated chamber and air-release valve give travelers up to 65L of effective packing space in an overhead-bin-friendly body.
Opens Like a Suitcase, Organizes Like a Pro
The full clamshell design lays flat for packing. Zippered mesh pockets, separate zones for shoes and cables, and an adjustable retention panel keep everything findable at security and in the hotel room.
Protection You Can Point To
A water-, wear- and scratch-resistant shell shrugs off weather and conveyor belts. The built-in combination lock secures the zippers; the reflective front strip keeps commuters visible after dark.
Comfort That Lasts the Whole Terminal
Thick padded straps, an adjustable sternum strap and a breathable mesh back panel distribute weight evenly, while side compression buckles keep the load stable through long walks and tight connections.
Technical Specification Sheet
| Brand | Shulen |
|---|---|
| Category | Expandable vacuum-compression travel backpack / carry-on |
| Color | Black (custom colors available for OEM orders) |
| Base / Expanded Capacity | Approx. 35L / 45L |
| Compression-Assisted Capacity | Up to 65L equivalent for soft, compressible contents |
| Dimensions (Before Expansion) | 510 × 320 × 190 mm / 20.08 × 12.60 × 7.48 in |
| Dimensions (After Expansion) | 510 × 320 × 235 mm / 20.08 × 12.60 × 9.25 in |
| Opening Style | Full clamshell (suitcase-style) wide opening |
| Compression System | Built-in vacuum compression chamber with air-release valve |
| Organization | Zippered mesh pockets, separate storage zones, adjustable retention panel |
| Exterior | Water-, wear- and scratch-resistant shell with reflective front strip |
| Comfort | Thick padded straps, sternum strap, breathable mesh back panel |
| Security | Built-in combination lock, dual-zipper closure |
| Charging | External USB pass-through port (power bank not included) |
| Carry Options | Padded shoulder straps, top handle, side handle |
| Travel Format | Approx. 20-inch carry-on profile for overhead-bin use |
| MOQ | Typically 100 pieces, confirmed per configuration |
Manual measurement tolerance: 10–30 mm. Product weight, exact material composition and package contents available on the order data sheet.
From Departure Gate to Boardroom
Customize This Backpack for Your Brand
Free design service and low-MOQ small-batch production — the fastest route from idea to a shelf-ready branded product.
Logo & CMF
Silk-print, laser or embossed logo; custom colors, materials and finishes matched to your brand book.
Custom Packaging
Retail box, gift set and e-commerce packaging designed in-house — artwork mock-ups are free.
MOQ From 100 pcs
Trial a small batch first. Final MOQ depends on customization depth.
15–25 Day Production
Samples in 3–7 days; small-batch orders produced and QC-inspected in 15–25 days.
Travel Backpack — FAQ
How does the vacuum compression system work?
The backpack has a built-in compression chamber with an air-release valve. Pack soft items like jackets and sweaters inside, close the chamber, and press the air out — reducing garment bulk so the 35–45L bag holds up to a 65L equivalent of compressible clothing. No external pump is required for basic use.
Is this backpack carry-on compliant?
In its 35L configuration the backpack measures 510 × 320 × 190 mm (20.08 × 12.60 × 7.48 in) — a standard 20-inch carry-on profile designed for overhead bins. Always verify limits with your airline, as rules vary by carrier and aircraft.
Does the USB port charge my phone by itself?
The external USB port is a pass-through connection: place your own power bank inside the bag, connect it to the internal port, and charge devices from the outside without opening the bag.
Is the backpack waterproof?
The shell is water-resistant — it protects against rain and splashes during normal travel. It is not designed for submersion.
Can we order this backpack with our own logo and colors?
Yes. Logo printing/embossing, custom color panels, lining and packaging are all available, with free design mock-ups and MOQ from 100 pieces. Sample lead time is 3–7 days.
What is the warranty and QC process?
Every batch passes IQC/IPQC/OQC inspection including zipper cycling, seam strength and lock function tests. B2B orders include our standard defect-replacement warranty — terms confirmed in your quotation.
Build the Full Business Travel Solution
All four Shulen product lines are designed to be bundled as one premium, co-branded travel set — one factory, one QC standard, one shipment.
Request a Quote
Tell us about your project — target market, quantity and customization needs. Our team replies within 24 hours.
- Free design service. Logo, color and packaging mock-ups at no cost.
- Small batches welcome. Start from around 100 pieces and scale as you grow.
- Direct factory pricing. You deal with our team in Nansha, not a trading company.
- A reply within 24 hours, in English or Chinese.