A Ryanair backpack 40x30x20 cm may seem easy to choose, but small differences in shape, material and layout can affect how comfortably it fits under the seat. For a short trip, you’ll want to pack clothes, toiletries, documents and perhaps a laptop without your bag becoming awkwardly heavy or too rigid.
Bear in mind that airlines can change their baggage rules. Always check the latest requirements for Ryanair, easyJet, Wizz Air or the airline you’re flying with before you travel. A bag with the right external dimensions is no guarantee if overpacking makes it bigger.
A backpack may measure 40 x 30 x 20 cm on paper, but hard edges, bulging compartments or full side pockets can make it difficult to fit under the seat. Check that the measurements are the external dimensions, and allow for the possibility of a slight variation.
For example, the Kono backpack is listed as having external dimensions of 40 x 30 x 20 cm, with internal dimensions that may vary by around 1 to 2 cm. Don’t pack it so full that the zip is strained, and use the compression straps to keep the contents compact.
A capacity of around 24 litres sounds generous, but a poorly organised bag can be less practical than a slightly smaller backpack with several compartments. For a 2- to 3-day trip, an open main compartment, a separate laptop compartment and an organiser for documents are more useful than one large compartment.
Polyester with a water-repellent finish helps protect against light rain and splashes. That doesn’t automatically mean the bag will keep heavy rain out for extended periods. Protect your laptop and important documents with a sleeve or waterproof pouch as well.
Terms such as “extra strong” or “durable” don’t tell you much unless they’re backed up by verifiable information. Instead, look at the material, weight, zips, seams and construction.
For a personal item backpack, the dimensions are the first thing to check:
A 40x30x20 backpack is designed as a compact underseat backpack. Some models may also fit in the overhead locker, but the relevant airline’s rules apply.
A lightweight model leaves more room for your own belongings if weight limits apply. According to the product information, the Kono backpack weighs around 0.5 kg. This is worth considering if you’ll also use it as a commuter or business travel backpack.
Also look for padded shoulder straps, a cushioned back panel and a sturdy handle. A trolley strap is useful if you want to slide the lightweight travel backpack over the handle of a suitcase.
If you’re looking for a 15.6-inch laptop backpack, don’t just check the laptop size. Make sure the compartment is padded and that the laptop won’t hit the ground when you put the bag down.
A useful layout for short trips includes:
When it comes to electronics, it’s a good idea to measure your laptop. A 15.6-inch size refers to the screen diagonal; the casing dimensions can vary between laptop models.
The options below are different product listings for the same Kono model. Check the product page for the latest price, stock availability, colour and delivery information.
Why it suits this profile: With dimensions of 40 x 30 x 20 cm, a weight of around 0.5 kg and a capacity of approximately 24 litres, this bag is a straightforward choice for travellers buying a personal item bag for the first time.
The product description gives the external dimensions and notes that the internal measurements may vary by 1 to 2 cm. The compression straps help keep the contents compact.
Three compartments, a padded 15.6-inch laptop compartment and a weight of around 0.5 kg according to the product information.
Why it suits this profile: For business travellers and commuters, keeping your laptop, documents and accessories neatly organised matters. The clamshell opening gives you easy access to the contents without having to take everything out.
The laptop compartment is separately padded, while the main compartment has mesh, slip and pen pockets. This keeps electronics separate from clothes and loose cables.
180° opening, cable pass-through, power bank pocket and trolley strap, according to the product description.
Why it suits this profile: This backpack is designed for travellers who want one bag for flights, weekends and everyday journeys. The breathable back panel and padded straps are practical when you’re carrying it for longer periods.
The product description says the polyester is tear-resistant and water-repellent. This is helpful for everyday use, but the bag is not described as fully waterproof.
Water-repellent polyester, breathable back panel, padded shoulder straps and a reinforced top handle, according to the product information.
We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety regulations.
That depends on the fare you’ve booked and Ryanair’s current baggage rules. Check whether your ticket allows a personal item under the seat, and compare the official maximum dimensions with the backpack’s external measurements. Pack it compactly; an overfilled backpack may be larger than the stated dimensions.
It depends on the laptop and the compartment. A backpack with a 15.6-inch laptop compartment is designed for this size, but measure the length, width and depth of your own laptop before buying. It’s best to place your computer in the padded compartment, away from hard objects.
Its lifespan depends on how much you carry, how often you use it, the strain on the zips and how well you look after it. Avoid overpacking for long periods, lift the bag by its reinforced handle and clean the polyester with a soft, damp cloth. Don’t use harsh cleaning products or leave the backpack in direct sunlight for extended periods.