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When you want to buy a backpack, you will often compare the colour, brand and price first. However, other details are crucial for practical everyday use: dimensions, compartment layout, material and carrying system. A visually appealing backpack can prove impractical if it cannot accommodate A4 documents, leaves your laptop unprotected or exceeds the permitted hand-luggage dimensions.
Many models are made from water-repellent or water-resistant polyester. This can keep out light rain, but it does not automatically mean the construction is permanently waterproof. Seams, zips and uncovered openings can still allow moisture to enter.
So always check the specific manufacturer’s information. A waterproof backpack should have clearly defined protective features. With a water-resistant backpack, we recommend using an additional protective cover for your laptop, documents and spare clothing.
The specification “15.6 inches” or “17 inches” describes the screen diagonal, not the device’s exact external dimensions. Depending on the casing, a laptop may be too wide or too thick for the compartment despite having the stated screen size.
Before buying, compare the internal dimensions of the laptop compartment with the dimensions of your device. Padding is useful, but it cannot replace a properly fitting size. A backpack with a laptop compartment should also be designed so that the device does not rest directly on the base.
A large capacity may sound practical, but in everyday use it can be unnecessarily heavy or cumbersome. For rail commuters and students, 20 to 30 litres is often sufficient. A travel backpack or hand-luggage backpack, on the other hand, needs more storage space while still complying with the requirements of the relevant airline.
Always check both values: the capacity in litres and the height, width and depth. With expandable models, the additional depth should only be used if it complies with the airline’s regulations.
A padded back and adjustable shoulder straps can improve weight distribution. However, the backpack’s own weight is also important. A model with numerous reinforcements and additional compartments may already be considerably heavier when empty than a minimalist daypack.
Pay attention to:
The description backpack for women and men usually means a universal fit. Nevertheless, for a comfortable fit you should still consider the back length, strap adjustment and backpack width.
Polyester and nylon are commonly used for backpacks. However, the material designation alone says nothing about the actual durability. Reinforced seams, neatly finished zips and strong strap attachments are more relevant for everyday use.
Also follow the care instructions. For several models, machine washing is not permitted because it may damage coatings and padding or affect the backpack’s ability to retain its shape. Cleaning with a damp cloth and mild detergent is often sufficient. A lightweight backpack made from thin fabric should not be overloaded or filled with sharp-edged objects.
Why this product suits this profile: The compact Eastpak backpack is suitable for school, leisure and everyday journeys. It offers a 24-litre capacity and can accommodate A4 formats.
The stated dimensions of 40 × 23 × 15 cm and weight of 400 g make it easier to assess the size. The product description also clearly highlights the care restrictions.
24 l capacity, padded back, padded shoulder straps and a zipped front pocket.
Why this product suits this profile: This model is designed for city travel, university and office life, and has a compartment for laptops up to 13.3 inches.
Laptop compatibility is specified clearly as 13.3 inches. The dimensions of 44 × 29.5 × 22 cm and the 27 l capacity help you assess storage space and everyday practicality.
27 l capacity, padded back, padded shoulder straps and a separate laptop compartment.
Why this product suits this profile: Business travellers and holidaymakers get an expandable main compartment, a 180-degree opening and a luggage trolley strap.
The standard dimensions of 50 × 35 × 15 cm and the extended depth of 20 cm are listed separately. Before flying, check these dimensions with the airline.
40 l expandable capacity, water-resistant polyester, TSA-friendly opening, luggage trolley strap and an empty weight of 850 g.
Why this product suits this profile: This cat backpack is designed for pet owners who want to transport cats or small dogs weighing between 0 and 8 kg, as recommended.
The product information clearly states that the backpack is not waterproof, must not be immersed in water and requires an external power supply for the fan and lighting.
Panoramic window, ventilation openings, USB-powered fan and feet; suitable for cats and small dogs up to 8 kg according to the product information.
We have put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations applicable in the EU.
For school, university and everyday office use, 20 to 30 litres is often practical. In addition to books or work documents, allow space for a laptop, charging cable, water bottle and personal belongings. If you regularly carry sportswear or additional shoes, you will need a larger capacity.
Its lifespan depends on the material, workmanship, level of use and care. Overloading, sharp-edged objects and zips that are kept open for long periods can put greater strain on seams and fabric. Clean the backpack according to the manufacturer’s instructions and regularly check the straps, seams and fastenings.
An ordinary backpack normally has no regular running costs. You may incur expenses for rain covers, laptop sleeves or replacement parts. A cat backpack with a fan and lighting also requires a suitable power bank, which is not included. Check the power bank’s usage instructions and keep power connections away from moisture.