Astrum Expandable Backpack 20-28L, USB Charging Port, PU, Up to 17 - LB310

The Astrum LB310 - One Bag for Every Day. Every Trip.

A premium PU travel backpack for professionals and frequent travellers. The LB310 starts at 20L for daily carry and expands to 28L when your needs grow - one bag from Monday commute to weekend trip.

Expandable 20-28L - Adapts With You

The expansion zip adds 8L in seconds, taking the bag from 46 x 32 x 18cm to 46 x 32 x 22cm. It remains within most airline carry-on size limits when expanded.

Up to 17" Laptop + External USB Charging Port

A dedicated padded laptop compartment fits laptops up to 17 inches. The external USB-A port connects to a built-in internal charging cable, allowing you to charge your phone from a power bank stored inside the bag without opening it.

PU Water-Resistant Exterior

The premium PU coating helps repel light rain and splashes. The professional finish makes it suitable for business, office, and travel use.

Airflow Foam Back Padding - All-Day Comfort

Multi-panel airflow foam back padding helps reduce heat and pressure during long commutes. Adjustable padded shoulder straps and a reinforced dual carry handle provide comfortable carry options. The LB310 weighs only 0.8kg empty.

Multiple Compartments

A dedicated laptop compartment, main storage area, front organiser pocket, and internal/side pockets provide space for your passport, phone, wallet, power bank, and accessories.

Technical Specifications

• Model: LB310
• Material: PU
• Colour: Black
• Base Capacity: 20L
• Expanded Capacity: 28L
• Laptop Size: Up to 17"
• USB Port: External USB-A + built-in internal cable
• Back Padding: Airflow foam padded
• Dimensions - Base: 46 x 32 x 18cm
• Dimensions - Expanded: 46 x 32 x 22cm
• Weight: 0.8kg

What's in the box
1 x Astrum LB310 Expandable Laptop Backpack
1 x Protective Dust Bag