Navy blue polyester backpack with breathable shoulder straps - PetersonA backpack that meets airline requirements while being functional, comfortable, and durable. This Peterson model combines well-thought-out design, excellent interior organization, and a compact format that meets restrictive free carry-on baggage allowances.No stress at the airport–dimensionscompliant with Ryanair and Wizzair free baggage allowances.Compartment opens like a suitcase.Internal luggage securing straps.Handle for attaching to a suitcase.Side mesh for a bottle or thermos.Breathable, padded shoulder straps with 3D mesh. mesh.Adjustable capacity – depth extension up to 20 cm.Soft top handle for easy carrying.Compliant with free carry-on baggage requirementsThe backpack meets the carry-on baggage dimensions of many carriers. Here are some examples of airlines where you can bring it on board for free:Ryanair – 40 x 20 x 25 cmWizzair – 40 x 30 x 20 cmeasyJet – 45 x 36 x 20 cmLOT – 55 x 40 x 23 cmVueling – 40 x 20 x 30 cmMain compartment – opens like a suitcaseThe backpack's greatest asset is its main compartment, designed with packing convenience in mind. It opens along its entire length – just like a cabin suitcase. This gives you full visibility of the contents and easy access to everything, without having to rummage around from the top.Inside you'll find:Compression straps that will keep your belongings organized and prevent them from shifting while traveling.Large mesh pocket with a zipper - perfect for documents, a cosmetics bag, or flat items.An additional pocket under the mesh, also with a zipper - perfect for things you want to keep well-hidden.Front compartment - quick access to handy items thingsAt the front of the backpack there is a second, independent compartment that opens traditionally – from the top.It's the perfect place for whatever you need to grab quickly and conveniently while traveling: a book, headphones, tablet, or small snacks.The front pocket not only increases the capacity of the backpack, but also significantly enhances its functionality.Flexible capacity – gain more space when you need itThis backpack was created for people who value functionality and adaptability to changing needs. Thanks to the built-in expansion zipper, you can increase its capacity in seconds – without compromising on comfort or aesthetics.How does it work?A zipper runs along the side walls of the backpack, which, when unzipped, increases the depth of the entire main compartment – from approximately 15 cm to up to 20 cm. This solution allows you to pack much more things when the situation requires it, for example, on the way back from a trip, when you have additional shopping, souvenirs, or clothes.Carrying comfort – designed for long journeysCarrying a backpack for several hours can be tiring – but not in this case.The contoured shoulder straps finished with a soft, breathable 3D mesh fit well on the shoulders and do not cause discomfort.Length adjustment up to 80 cm allows you to perfectly fit the backpack to your figure.This is complemented by Soft, well-padded top handle, which is useful when carrying the backpack by hand.Side mesh pocket - perfect for a drinkOn one side of the backpack there is an elastic mesh pocket which is perfect for a water bottle, thermos, or a small umbrella. This means you don't have to open the main compartments every time you want to grab a drink.Luggage strap - attach the backpack to your suitcaseIf you're taking It also carries larger luggage, this backpack has something else – a fastening strap that allows you to quickly and securely attach it to your suitcase handle.No more carrying – just one move and the backpack goes with your suitcase.The perfect carry-on luggage – what will fit?Despite its compact dimensions, the backpack is really spacious. You can easily fit in it:Clothing sets for a weekend tripCosmetic bag and toothbrushElectronics – tablet, camera, chargers, power bankDocuments, a book, snacksWater bottle and umbrellaIt's the perfect choice for a weekend city break, a business trip, a backpacking trip, or as an under-the-arm bag on board. airplane.