Joybuy Insights

Choosing a Ryanair cabin bag backpack: dimensions, organisation and smart product choices

A Ryanair cabin bag backpack might seem easy to choose: find a compact style, pack it and take it to the gate. In practice, extra charges often come down to small details. A backpack may look compact on paper, but full side pockets, thick laptop padding or a rigid back can stop it fitting under the seat.

Common pitfalls when choosing a cabin bag backpack

1. Looking only at the capacity in litres

A capacity of 24 litres sounds appealing for a weekend backpack, but litres don’t tell the whole story. A slim 24-litre bag may fit under a seat more easily than a wide, overfilled backpack of the same volume. Always check the external dimensions, not just the capacity.

2. Confusing “water-repellent” with waterproof

Product descriptions may say that a water-repellent backpack helps protect against light rain or splashes. That doesn’t automatically mean the seams and zips will keep out prolonged rain. A water-repellent outer fabric is practical for a travel backpack, but consider using a separate cover for electronics.

3. Choosing a laptop compartment that doesn’t fit your laptop properly

A label such as “15.6-inch laptop backpack” is useful, but check the layout too. A compartment may be suitable for a particular screen size, while your laptop’s casing is still too large or thick. Measure the laptop itself and compare those measurements with the product specifications.

Which dimensions are suitable for Ryanair?

Ryanair has different baggage categories. A small personal item must fit under the seat; a larger cabin bag may have different conditions. Permitted dimensions and fees may vary depending on your booking or changes to the policy. Always check the latest information in your booking before you travel.

When choosing a Ryanair underseat backpack, consider:

  • External dimensions: many travellers look for a 40x30x20 cm cabin bag backpack, but check whether this size is included with your ticket.
  • Shape: a soft backpack can flex slightly, but overfilled pockets make the bag larger.
  • Weight: a lightweight travel backpack leaves more room for clothes and accessories within the permitted limit.
  • Compression: side straps can help pull the contents closer to the bag.
  • Access: a wide opening or clamshell layout makes packing easier than one deep main compartment.

A 40x20x25 cm model is also often sold as a Ryanair size. The Kono Cabin Bag 40x20x25 specifically mentions Ryanair in its product name. Check the current dimensions permitted by your ticket before ordering.

Important features for everyday use

Organisation and capacity

For a short trip, it’s useful to have a separate place for your passport, charger and toiletries. A personal item backpack with several compartments means you won’t have to take everything out of the main compartment at security. For commuting, a document compartment and laptop sleeve matter more than a large open storage area.

Laptop protection

A padded compartment gives your laptop or tablet its own space, but it doesn’t guarantee protection if the bag is dropped. Don’t place heavy items directly against your laptop, and consider extra protection for valuable equipment. According to the product description, the Kono 40x30x20 cm comes with a padded compartment for a laptop up to 15.6 inches.

Comfort and care

Look for padded shoulder straps, a breathable back panel and a sturdy handle. A trolley sleeve is useful if you want to attach your cabin backpack to a suitcase. Several product descriptions recommend wiping the bag with a damp cloth and leaving it to air dry. Always check the manufacturer’s care instructions for water-repellent fabrics.

Our picks for different types of user

Suitable for: Budget-conscious first-time buyers
Kono Cabin Bag 40x20x25 for Ryanair Underseat Travel Carry-on Backpack Cabin Size 20L Black

Kono Cabin Bag 40x20x25 for Ryanair Underseat Travel Carry-on Backpack Cabin Size 20L Black

Why it suits this profile: The stated dimensions of 40 x 20 x 25 cm match the compact shape many travellers look for when taking a short flight without a larger cabin bag.

How this product avoids the pitfall

The product name gives the external dimensions and a capacity of 20 litres. Measure the bag again after packing it, and check your ticket conditions.

Key benefit & highlights

Compact size, black design and a 20-litre capacity according to the product listing.

Suitable for: Buyers looking for premium quality
Kono Ryanair Cabin Backpack 40x30x20cm, Underseat Travel Bag with 15.6 Inch Laptop Sleeve

Kono Ryanair Cabin Backpack 40x30x20cm, Underseat Travel Bag with 15.6 Inch Laptop Sleeve

Why it suits this profile: This bag combines weekend-trip capacity with work-friendly features, making it suitable for short business trips, students and commuters.

How this product avoids the pitfall

The product description lists external dimensions of 40 x 30 x 20 cm, compression straps and a laptop compartment. Before travelling, check that this size is allowed for your Ryanair baggage category.

Key benefit & highlights

According to the product information: approximately 24 litres of capacity, a weight of 0.5 kg, three compartments and a padded 15.6-inch laptop compartment.

Suitable for: Specific needs & frequent users
NINETYGO College-Style Dual-Shoulder Backpack

NINETYGO College-Style Dual-Shoulder Backpack

Why it suits this profile: This model is designed for school, work and everyday travel, where generous main-compartment space and quick access to electronics are important.

How this product avoids the pitfall

The description warns that water-repellent does not mean fully waterproof. It also recommends not overfilling the bag.

Key benefit & highlights

According to the product information: 900D tear-resistant fabric, multiple front pockets, padded straps and water-repellency level 4.

Check this before you order

Use this quick checklist:

  1. Compare the external dimensions with the baggage rules in your Ryanair booking.
  2. Measure your laptop with its protective case.
  3. Check the weight of the empty bag.
  4. Check that the zips, shoulder straps and handle are suitable for everyday use.
  5. Pack the bag with the items you plan to take and check that it still fits under the seat.
  6. Choose a model with clear product specifications rather than relying on general marketing terms.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety regulations.

Frequently asked questions about Ryanair cabin bag backpacks

What size backpack can I take as a personal item on Ryanair?

That depends on the current conditions of your ticket. Many models are sold in sizes such as 40x20x25 cm or 40x30x20 cm. Always check the baggage information in your booking and allow for the bag’s external dimensions when packed.

Will a 15.6-inch laptop backpack fit under the aeroplane seat?

It might, but the laptop compartment doesn’t determine the overall size of the bag. Check both your laptop’s dimensions and the backpack’s external dimensions. A well-packed model may be thicker than its stated size.

How can I avoid extra baggage charges?

Choose a backpack that is confirmed to be within the permitted dimensions, don’t overfill it and measure it at home. If in doubt, check the airline’s conditions and the details of your specific ticket again.