Lossga 411 18L Underseat Cabin Backpack

The Lossga 411 underseat cabin backpack is listed at 40x30x15cm with an 18-litre capacity and a dedicated compartment for laptops up to 14 inches. Its multiple pockets and padded straps suit short trips, while airline acceptance depends on current rules and the packed bag's actual dimensions.

At a glance

A dedicated laptop compartment is stated to fit devices up to 14 inches.
The listing describes a concealed anti-theft pocket and a strap for attaching the backpack to rolling luggage.
The claimed security-check design opens 90–180 degrees for inspection.
Breathable padded shoulder straps, a padded back panel and an adjustable chest strap are described.

Price

£23.10Save 17%

Reference price: ~~£27.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

18-litre capacity and a dedicated 14-inch laptop compartment make it suited to compact trip essentials and a laptop.
The listed seven pockets and seven compartments offer several places to organise belongings.
A luggage trolley strap can attach the bag to a rolling suitcase.

Cons

The 18-litre capacity is aimed at compact packing rather than bulky or extended-trip loads.

Technical specifications

20 specifications

Identity and dimensions
Brand	Lossga
Model	411
Listed size	40x30x15cm
Item dimensions	15D x 30W x 15H centimetres
Capacity	18 Liters
Colour	Black-1

Organisation and carrying
Maximum compatible device size	14 Inches
Pockets	7
Strap type	Padded Strap
Closure	Zipper
Product style	Laptop Backpack

Materials and protection
Outer material	Polyester
Construction	Softside
Shell type	Soft Shell
Water resistance listed	Water Repellent
Special feature	Anti-Theft

Care and other details
Care instructions	Wipe with Damp Cloth
Pattern	Solid
Age range	Adult
Country of origin	China

What to know before buying

Listing details to confirm

The listing gives inconsistent measurements: the title and size field say 40x30x15cm, while the item-dimensions field says 15D x 30W x 15H centimetres. It also claims compatibility with several airlines, but airline size allowances and acceptance are not confirmed. The listing says both seven pockets and seven compartments, without clarifying how these counts relate. Its TSA-approved wording describes an opening design, not independently established approval. It notes manual measurement may vary by 2–3cm, so check the selected bag and current airline limits before travel.

Who is it for?

A good fit for

Travellers seeking a compact underseat-style backpack for short trips and airport hand luggage.
People who want a separate compartment for a laptop up to 14 inches and multiple storage sections.
Those who prefer backpack straps and a trolley attachment for carrying alongside wheeled luggage.

Less suited to

Travellers needing a larger capacity for bulky items or extended trips.
Buyers who require confirmed fit against a particular airline's current cabin-bag rules without checking the dimensions.

Lossga 411 18L Underseat Cabin Backpack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 2,084 ratings

5 stars83%83%
4 stars10%10%
3 stars4%4%
2 stars2%2%
1 star1%1%

Customer feedback is positive about quality, size, storage, organisation, under-seat fit and carrying comfort, including a mention of wide padded straps. That feedback fits the bag's stated compact dimensions, 18-litre capacity and padded carry design, making it relevant to short trips. Airline fit is still a separate consideration because the listed dimensions conflict and individual airline limits may vary. Aggregate ratings are mostly five-star, but ratings alone do not establish performance or explain less favourable experiences.

Positive themes

Customers describe the bag as useful for short trips and airport hand luggage, with helpful storage and pockets.
Feedback mentions under-seat fit and comfortable carrying, including wide padded shoulder straps.

Frequently asked questions

What are the listed dimensions and capacity?

The listing gives a size of 40x30x15cm and an 18-litre capacity. Its separate item-dimensions field gives different measurements, so check the actual selected listing before relying on a precise fit.

What size laptop does it accommodate?

The listing states a dedicated compartment for devices up to 14 inches.

Is the backpack guaranteed to fit every named airline?

No. The listing claims suitability for several airlines, but acceptance depends on the airline's current rules and the bag's actual dimensions when packed.

How should the bag be cleaned?

The care instruction is to wipe it with a damp cloth.