From Personal Item to Carry-On — One Zip.
Pack light for the flight, expand for the trip. The UKEIN 40L Expandable Travel Backpack transforms from a compact 22L personal item that fits under the seat to a full 40L carry-on in seconds — IATA-approved for overhead bin storage. A dedicated 17-inch laptop compartment, built-in USB charging port, anti-theft hidden pocket, dry/wet separation bags, and a breathable ergonomic back system make this the most capable travel backpack you’ll ever pack. Built for 3–5 days of travel, business trips, commutes, and weekend adventures.
Expandable 22L → 40L – IATA Carry-On Approved
Expands from 22L (18.1″H × 12.5″L × 5.5″W) to 40L (18.1″H × 12.5″L × 10.5″W) with a single zip — no repacking, no checked bag fees. Meets IATA-approved size requirements for overhead bin storage on most airlines. Travel compact, arrive with everything you need.
Dedicated 17″ Laptop Compartment
A separate, extra-padded 17-inch laptop compartment keeps your device protected, cushioned, and completely isolated from the rest of your gear. Ideal for business travellers, remote workers, and students who carry a large-format laptop everywhere they go.
Built-In USB Charging Port
The external USB port with built-in internal charging cable lets you charge your phone on the go without opening your bag — connect your power bank to the internal cable and plug your device into the external port. Stay powered through long-haul flights, layovers, and full travel days.
6 Organised Storage Zones
Every compartment has a purpose. The main compartment holds travel essentials with dry/wet separation bags. A 17″ padded laptop compartment protects your device. A hidden back panel pocket secures valuables anti-theft. A front accessory pocket with keychain holds personal items. Two front pockets handle small everyday items. A hidden 1000ml side pocket keeps your water bottle accessible without opening the bag.
Waterproof High-Density Nylon
Constructed from waterproof nylon fabric that repels rain, splashes, and wet conditions — keeping your laptop, documents, and gear dry through unpredictable travel weather. Heavy-duty zippers and reinforced stitching ensure long-term durability through repeated daily use.
Ergonomic Comfort System
Cushioned back panel and shoulder straps with breathable sponge mesh relieve pressure and enhance ventilation for all-day carry comfort. Adjustable chest straps ensure a secure, customised fit across all body types. A luggage strap attaches the bag to your trolley handle for hands-free airport navigation.
Backpack or Suitcase – Two Padded Handles
Two padded top handles let you carry the bag like a suitcase when needed — seamlessly switching between backpack and hand-carry mode. Versatile enough for business travel, casual commuting, weekend trips, and hiking adventures.
Product Specifications
Brand: UKEIN | Color: Black | Volume: 22L (compact) → 40L (expanded) | Compact Size: 18.1″H × 12.5″L × 5.5″W | Expanded Size: 18.1″H × 12.5″L × 10.5″W | Weight: 2.2 lbs | Material: Waterproof nylon fabric | Laptop: Up to 17 inches (padded) | USB Port: Built-in external port + internal cable | Airline Compliance: IATA carry-on approved | Features: Expandable, waterproof, anti-theft, USB charging, dry/wet separation, luggage strap | Best For: Business travel, commuting, school, weekender, hiking
Material
Waterproof high-density nylon fabric with heavy-duty zippers and reinforced stitching. Extra-padded 17-inch laptop compartment. Built-in USB charging port with internal cable. Breathable sponge mesh back panel and shoulder straps. Adjustable chest straps and luggage trolley strap. Dry/wet separation bags included. Anti-theft hidden back panel pocket. Weight: 2.2 lbs. Expands from 22L to 40L.
What’s in the Box
UKEIN Travel Backpack × 1 | Dry/Wet Separation Bags included | Color: Black | Note: Power bank not included.
