At first glance, a backpack seems straightforward: enough compartments, an appealing design and a reasonable price. However, the wrong choice can quickly become impractical. For example, a laptop may not fit in the padded compartment, the shoulder straps may dig in when the bag is full, or a water-repellent outer layer may turn out not to be the same as being waterproof.
With this buying guide, you can compare backpacks by size, carrying comfort, material and intended use. This makes it easier to choose between a 15.6-inch laptop backpack, business backpack, travel backpack, school backpack or lightweight bag for everyday use.
A large backpack is not automatically practical. A bag may offer plenty of litres of capacity but have very few well-organised compartments. In that case, your charger, keys and documents can all end up mixed together. As well as checking the capacity, look at the layout, number of compartments and dimensions of the laptop compartment.
A water-repellent backpack will generally protect against light rain or splashes, but it will not automatically keep your belongings protected during a prolonged downpour. Check the product description, fastening and whether the zips are covered. For important electronics, take additional protection with you, such as a laptop sleeve or waterproof inner pouch.
A backpack with a USB port usually contains a pass-through connection that allows you to connect your own power bank inside the bag to a cable on the outside. The bag does not charge by itself. Also check that your power bank and cable are compatible and that the port is easy to access.
A 15,6-inch laptop backpack is only suitable if the inner compartment is large enough for your specific laptop. Screen size is not the same as the device’s overall dimensions. Measure your laptop and compare those measurements with the product information.
Look out for:
For commuting, a capacity of around 15 to 25 litres is often practical for a laptop, lunch, charger and a cardigan. A large backpack or travel backpack can hold more, but it will also be heavier when fully packed.
A foldable bag is useful as a spare for shopping, a day out or extra luggage during a trip. However, check the difference between its standard and expanded capacity. According to the product description, the Beneunder GP155 has a capacity of 16 litres and weighs approximately 64 grams. The bag folds down into a compact pouch.
For larger shopping trips or clothing, the Beneunder LC168 offers a capacity of 20 litres, expandable to 35 litres, with a weight of approximately 220 grams, according to the product description.
A lightweight backpack reduces the weight of the bag itself, but comfort also depends on the shoulder straps, back panel and weight distribution. For everyday use, look for:
With a shoulder bag or crossbody bag, the length of the strap is just as important. A strap that is too short restricts your freedom of movement, while one that is too long may cause the bag to knock against your hip.
Why it suits this profile: This foldable bag is designed for shopping, travel and everyday use. Its low weight makes it easy to carry as a spare.
The stated 16-litre capacity and foldable design make it clear what this bag is intended for. It is not a replacement for a padded laptop backpack.
According to the product description: approximately 64 grams, 16 litres of capacity, wide shoulder straps and compact storage when folded.
Why it suits this profile: This business backpack is designed for the office, commuting and travelling with a laptop. The product title mentions a USB charging port and water-repellent material.
The laptop size is clearly stated in the title. You need to use the USB port with your own power bank, so do not expect a built-in battery.
According to the product title: suitable for a 15.6-inch laptop, lightweight design, USB pass-through and water-repellent properties.
Why it suits this profile: This spacious, foldable bag is ideal for travellers, shoppers and anyone who regularly switches between compact storage and extra carrying capacity.
The standard and expanded capacities are listed separately: 20 and 35 litres. This makes it easier to estimate how much you can actually carry.
According to the product description: expandable to 35 litres, approximately 220 grams, foldable and fitted with an inner compartment with divider.
We have compiled a complete, up-to-date list of products that fully meet these strict selection criteria and the applicable European safety regulations.
Its lifespan depends on the material, stitching, zips, carrying weight and frequency of use. A bag that is heavily loaded every day will wear out faster than a spare or shopping bag. Avoid overloading it, store it somewhere dry and follow the care instructions. According to the product information, Beneunder bags should be cleaned with a damp cloth and left to air-dry.
Adjust both shoulder straps evenly and place heavy items close to your back. Use the laptop compartment for its intended purpose and prevent hard objects from pressing against your back. With a heavy travel backpack, a chest strap or waist belt can help distribute the weight more effectively, if the model has one.
The USB port is generally a connection point for your own power bank, not a power source in itself. Use a suitable cable, keep the power bank dry and remove it before cleaning the bag. Always check the product information and the manufacturer’s instructions before connecting electronic accessories.