Joybuy Insights

Buying a backpack: how to choose a practical model for school, work, travel or walking

Buying a backpack seems straightforward until you start dealing with a laptop compartment that is too small, an uncomfortable carrying system or a bag that lets in water during the first shower. Marketing terms such as “waterproof”, “ergonomic” and “cabin-bag size” only mean something when you check the specifications behind them.

For school pupils, students, commuters, travellers and outdoor enthusiasts, three pitfalls are particularly important:

  • A capacity that is too large or too small: an 18-litre backpack may be suitable for a day trip, but not spacious enough for books, clothing and a laptop.
  • Unclear protection against rain: water-repellent fabric is not the same as a waterproof construction. Check the material, zips, seams and whether a rain cover is included.
  • Unverified dimensions: a bag described as suitable for use as cabin luggage must still be compared with your airline’s current requirements.

Which specifications should you check?

1. Capacity and dimensions

Do not just look at the number of litres. Consider the shape of the bag and its layout too. For everyday use, a document compartment, laptop compartment and smaller zipped pockets are often more practical than one large compartment.

A laptop backpack for a 15.6-inch laptop should not only state the maximum screen size. Also check whether there is enough room for the laptop casing, charger and accessories. A bag that can carry a 15.6-inch laptop backpack is not automatically suitable for heavy schoolbooks or clothing.

For air travel, centimetres are more important than an approximate capacity. A Ryanair bag or other compact cabin bag must comply with the conditions for an under-seat bag or luggage-compartment bag. Always check the airline’s current rules before departure; these may vary depending on the ticket type.

2. Weight and carrying comfort

A lightweight backpack reduces the weight you carry around every day. However, low weight alone is not enough. Also look for:

  • adjustable shoulder straps;
  • a chest strap for longer walks;
  • a padded back panel;
  • a hip belt if you use the bag when heavily loaded;
  • a handle for short journeys.

A backpack with lots of compartments can be convenient, but extra zips, attachment loops and sturdy panels can sometimes increase the weight. Choose features that suit the way you intend to use it.

3. Material, rain protection and extra features

Oxford fabric and recycled synthetic materials are often used for school and travel backpacks. Check what the product description actually states. “Water-repellent” generally means that light rain is kept out temporarily; it is not a guarantee against prolonged rainfall.

A water-repellent backpack with a rain cover provides an additional layer of protection in wet weather. For cycling to and from work, covered zips and a well-sealed laptop compartment are useful. For walking, a backpack with a hydration bladder may be more practical. Check the stated compatibility carefully: a bag designed for a 2-litre water bladder does not always include one.

A backpack with a USB port usually contains only the port and an internal cable. You need to insert the power bank yourself. The USB connection therefore does not replace a charger and says nothing about charging speed.

Recommended models for different uses

Suitable for: Budget-conscious beginners
Kono Luminous Anime School Backpack

Kono Luminous Anime School Backpack

Why it suits this profile: This school backpack is designed for school pupils and students who want to combine laptop space, organised compartments and a distinctive design.

How this product avoids the pitfall

The product information states that it has a compartment for laptops up to 15.6 inches and several storage pockets, so you do not have to rely solely on the capacity in litres.

Key benefit & highlights

Oxford fabric, laptop space for up to 15.6 inches, USB port and a stated weight of 0.47 kg. Power bank not included.

Suitable for: Buyers seeking top quality
Water-Repellent Roll-Top Laptop Backpack 15.6 Inch

Water-Repellent Roll-Top Laptop Backpack 15.6 Inch

Why it suits this profile: The roll-top design is ideal for commuters who want to use their bag flexibly for work, cycling and urban travel.

How this product avoids the pitfall

The product name states that it is water-repellent, not fully waterproof. This makes it clear that you should consider additional protection in prolonged rain.

Key benefit & highlights

Roll-top design, laptop space for 15.6 inches and a layout suited to everyday work and city use.

Suitable for: Specific uses & intensive users
OutdoorMaster Snow Sport Travel Backpack Black 18L

OutdoorMaster Snow Sport Travel Backpack - Black 18L

Why it suits this profile: Walkers and winter sports enthusiasts get a compact hiking backpack with attachment options and preparation for a hydration bladder.

How this product avoids the pitfall

The description mentions a separate rain cover and water-repellent recycled fabric. This is more specific information than simply using the term “waterproof”.

Key benefit & highlights

18-litre capacity, chest and hip straps, breathable back panel, attachment loops and compatibility with a 2-litre water bladder; the water bladder is not included.

Suitable for: Short-haul flights
Kono 40x20x25cm Cabin Holdall for Ryanair

Kono 40x20x25cm Cabin Holdall for Ryanair

Why it suits this profile: This compact travel bag is designed for weekend trips and flights where dimensions and low empty weight are particularly important.

How this product avoids the pitfall

The exact dimensions of 40 x 20 x 25 cm and the weight of 0.36 kg are stated. The description also notes that the bag is not water-resistant.

Key benefit & highlights

20-litre capacity, shoulder strap, handles and a trolley sleeve. Check your flight’s baggage rules before buying.

Looking for more options?

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

Frequently asked questions about buying a backpack

What capacity do I need for school or work?

A medium-sized backpack may be sufficient for a laptop, documents and everyday accessories. School pupils who also carry books, lunch and sportswear will generally need more space. As well as the litre capacity, check the dimensions of the main compartment and the position of the laptop compartment.

Is a water-repellent backpack suitable for cycling in the rain?

That depends on how long and how heavily it rains. Water-repellent fabric can keep out light rain temporarily, but it does not automatically protect against cycling through a shower for an extended period. A rain cover or waterproof inner sleeve can provide additional protection. Also check whether the zips and seams are covered.

Can any cabin bag be taken on a plane?

No. Permitted dimensions and weight vary by airline and sometimes by ticket. Measure a cabin bag including any protruding parts and check the current conditions before departure. A model with dimensions mentioned in the product description for a particular airline is not a substitute for checking the requirements yourself.