Collection: Cabin backpacks

( Last updated 6 December 2025 )

The Best Cabin Bag Backpacks on the Market

At TheCabinBag™, our cabin backpacks are engineered to outperform every traditional carry-on. Built around our exclusive vacuum-compression technology, they allow you to pack significantly more while staying 100% compliant with all major airline cabin rules. Designed to maximise capacity without ever exceeding size limits, our range covers every official format: 40×20×25 cm for Ryanair’s free allowance, 45×36×20 cm for EasyJet underseat, 55×40×20 cm for Ryanair Priority and most EU airlines, and 56×45×25 cm for the EasyJet Large Cabin Bag tier.

Lightweight, ultra-durable and intelligently organised, each cabin luggage backpack is crafted to help you take more, stress less, and glide through every airport with complete peace of mind.

Ryanair Cabin Backpack

Ryanair’s 2025 policy changes have made the ryanair cabin backpack more important than ever. With stricter controls, paid overhead access, and a growing gap between free and Priority allowances, choosing the right backpack is now the smartest way to avoid extra fees. Travellers who pick the correct size can fly comfortably and for free while those who don’t risk unexpected airport charges. Our Ryanair-optimised backpacks are designed to help you travel light, skip add-on costs, and stay fully compliant on every flight.

Cabin Backpack 40×20×25: Our Free-Allowance Essential

Ryanair’s free allowance in 2025 still revolves around the strict 40×20×25 cm limitanything larger must be paid for. Our dedicated cabin backpack in this format is engineered to give you the maximum possible packing volume while remaining perfectly compliant with the free underseat rules. Lightweight, structured, and enhanced with our vacuum-compression system, it lets you carry far more than a traditional small bag, without ever triggering size-check penalties.

For travellers who want to fly with no extras, no stress, and absolutely no surprise fees, this is the most efficient and cost-saving Ryanair backpack you can choose.

Cabin Backpack 55×40×20: Built for Ryanair Priority Travel

For travellers choosing Ryanair Priority, the 55×40×20 cm cabin backpack remains the most powerful way to maximise what you can bring on board in 2025. This size unlocks access to the overhead bin, allowing you to pack for longer trips while staying fully compliant with Ryanair’s updated inspections and sizers.

Our 55×40×20 model is engineered like a full-size carry-on—yet lighter, more flexible, and enhanced with our vacuum-compression technology, which lets you pack up to 30% more without exceeding the official limits. It’s the ideal choice for travellers who want maximum capacity, fast boarding, and complete peace of mind under Priority rules.

Whether you're flying for a weekend or a full week, this is the ultimate Ryanair-approved upgrade

EasyJet Cabin Bag Backpack

EasyJet’s 2025 cabin rules make choosing the right backpack essential for avoiding fees and maximising what you can bring on board. The free underseat allowance remains 45×36×20 cm, while the optional Large Cabin tier unlocks overhead access up to 56×45×25 cm. Choosing an optimised EasyJet cabin bag backpack ensures you travel with the maximum legal volume while staying 100% compliant with EasyJet’s updated baggage checks.
At TheCabinBag™, every EasyJet-ready model is engineered to give you more space, more organisation and more freedom whether you’re flying on the free fare or upgrading to the Large Cabin option. For travellers seeking matching luggage styles and complete compatibility, explore our EasyJet cabin bags collection.

EasyJet Cabin Backpack 45×36×20 : The Perfect Free Underseat Fit

EasyJet’s free underseat allowance (45×36×20 cm) is one of the most generous in Europe, and our dedicated backpack is engineered to use every millimetre of that space. Designed to slide effortlessly under the seat, it maximises your packing volume while keeping you 100% compliant—even under the stricter 2025 sizing checks.

Thanks to our vacuum-compression system, the 45×36×20 model packs more than a classic daypack, stays lightweight, and keeps everything perfectly organised for short trips or minimalist travellers. No add-on fees, no boarding stress just seamless, efficient travel with the largest free cabin size EasyJet allows.

EasyJet Large Cabin Backpack 56×45×25: Maximum Capacity for Overhead Travel

For travellers who want true carry-on freedom, the 56×45×25 cm Large Cabin allowance is EasyJet’s most powerful option. Our backpack designed for this format delivers the maximum overhead capacity legally permitted while remaining fully compliant with EasyJet’s 2025 measurements and boarding checks.

Built like a full-size carry-on but easier to handle, this model features our signature vacuum-compression technology, allowing you to pack significantly more without adding bulk or weight. Whether you travel for work or extended weekends, this is the ideal upgrade for passengers who choose the Large Cabin option and want the highest volume possible without switching to a rigid suitcase.

Cabin Luggage Backpack FAQ

What is a cabin luggage backpack?

A cabin luggage backpack is a travel backpack designed to meet airline carry-on size limits. It offers more flexibility than a suitcase, fits in overhead bins or under the seat, and keeps your essentials accessible throughout the journey.

What size backpack is allowed as cabin luggage?

Most airlines accept backpacks up to 55×40×20 cm as standard cabin size, while underseat sizes vary: 40×20×25 cm for Ryanair and 45×36×20 cm for EasyJet. Always check your airline’s most recent requirements.

Can a backpack be my only cabin bag?

Yes. A well-designed cabin backpack can replace your entire carry-on setup. With smart organisation and compression systems, many travellers now fly exclusively with a single backpack.

Is a cabin backpack better than a suitcase?

For flexible travellers yes. Backpacks are lighter, easier to carry through busy terminals, simpler to stow, and better suited to minimalist or one-bag travel. Suitcases remain best for long trips or heavy loads.

What is the best cabin backpack?

The best cabin backpack is one that maximises packing volume while remaining 100% compliant with airline limits. Models with clamshell openings, multiple handles, and compression systems are considered the most efficient.

What is the best size for a cabin bag backpack?

It depends on your airline:
– 40×20×25 for Ryanair free allowance
– 45×36×20 for EasyJet underseat
– 55×40×20 for Priority / standard EU cabin
– 56×45×25 for EasyJet Large Cabin

Is a 40×20×25 backpack enough for a trip?

Surprisingly, yes if the backpack is well organised. Many travellers use this size for weekend trips thanks to compression systems, laptop sleeves and structured interiors.

Does a cabin travel backpack fit under the seat?

Underseat dimensions vary by airline, but Ryanair (40×20×25 cm) and EasyJet (45×36×20 cm) have strict requirements. Backpacks built specifically for these formats will always fit.

Are cabin backpacks allowed on Ryanair?

Yes, but only if they fit the 40×20×25 cm free allowance or the 55×40×20 cm Priority cabin size when overhead access is included.

Are cabin backpacks allowed on EasyJet?

Yes. EasyJet accepts both 45×36×20 cm underseat backpacks and 56×45×25 cm Large Cabin backpacks for overhead storage.

Do airlines check backpack weight?

Some do. Ryanair usually focuses on dimensions, while EasyJet may check weight depending on fare type. Keeping your backpack lightweight is essential to avoid issues at the gate.

Is a 45×36×20 backpack enough for a 3–4 day trip?

Absolutely. With efficient packing and compression, this is one of the most versatile travel sizes for city breaks, business trips and minimalist travel.

Should I choose a cabin backpack with wheels?

A cabin backpack with wheels is great for travellers who prefer rolling luggage. However, wheels add weight and reduce internal volume backpacks without wheels maximise packing capacity.

What features should a good cabin backpack have?

Look for:
– Clamshell opening
– Multiple grab handles
– Padded laptop pocket
– Compression straps or vacuum-compression technology
– Water-resistant materials
– Weight under 1.2 kg

Is a cabin backpack suitable for one-bag travel?

Yes. Many digital nomads, photographers and long-term travellers use a single cabin travel backpack for extended trips, thanks to its mobility and organisation.

Can I use a hiking backpack as cabin luggage?

Sometimes but hiking backpacks often exceed depth restrictions or lack structured organisation. Cabin-specific backpacks are more reliable for airline compliance.

Why choose a cabin backpack over a duffle?

Backpacks distribute weight better, keep your hands free, and offer dedicated organisationmaking them ideal for airports, commuting, and long walking distances.