Joybuy Insights

Choosing a backpack without making a costly mistake: look out for these features and models

A backpack may seem simple to choose, until you use it every day. That is when you discover whether the shoulder straps stay in place, whether your laptop is protected and whether there is enough room for a bottle, lunch and charger. A low price or striking design says little about practical use.

For adults, students, school pupils, commuters, athletes and travellers, three pitfalls are particularly important:

  • A capacity that does not suit your belongings: a 10-litre backpack is suitable for light everyday items, but not automatically for books, sportswear and a laptop.
  • Confusing water-repellent with waterproof: materials that keep out splashes are not necessarily able to withstand prolonged rain.
  • Lots of compartments without a logical layout: extra zips are only useful if you can find important items quickly and the weight remains evenly distributed.

A good choice therefore starts not with the colour or brand, but with the capacity, dimensions, carrying design and material.

Which specifications are important when choosing a backpack?

1. Capacity and dimensions

Do not just look at the number of litres, but also at the shape. A spacious backpack may have sufficient volume, for example, but be too narrow for a laptop or A4 documents.

As a guideline:

  • 10 to 13 litres: suitable as a compact everyday backpack for a phone, wallet, tablet, lunch and a few personal items.
  • 20 to 25 litres: practical for school, work, sport or a short trip.
  • More than 25 litres: worth considering as a travel backpack or for athletes carrying clothing, shoes and accessories.

Always check the exact dimensions. According to the product specifications, the Joma Training III has a capacity of 24.2 litres and measures 48 × 35 × 24 cm. That makes it clearly more spacious than a compact casual backpack.

2. Material and protection against rain

Polyester and nylon are often used because they are relatively lightweight and easy to clean. However, the properties vary from one model to another. Look out for terms such as water-repellent, anti-splash or water-resistant. These usually describe protection against splashes and light rain, not guaranteed waterproofing.

According to Beneunder’s product description, the LC183 is made from nylon that helps keep out wind, rain and stains. The product information recommends cleaning the bag with a damp cloth, not putting it in the washing machine and allowing it to dry naturally. In heavy rain, consider using a separate rain cover, especially when carrying a laptop or documents.

3. Carrying comfort and compartment layout

Adjustable shoulder straps are important for fitting the backpack correctly. Padded straps can feel more comfortable with a heavier load, but they cannot replace good weight distribution.

Also look out for:

  • a separate laptop or tablet compartment;
  • a zipped pocket for keys and cards;
  • side pockets for a drinks bottle or umbrella;
  • a wide opening if you often pack books or sportswear;
  • a handle for short journeys;
  • a sturdy base if the backpack is regularly placed on the floor.

A backpack with multiple compartments is not always more convenient. Too many small compartments can actually reduce the available space. Choose the layout based on what you carry every day.

Our recommendations for different uses

Suitable for: Budget-conscious beginners
NINETYGO Tiny Backpack Blue

NINETYGO Tiny Backpack, Blue

Why it suits this profile: Weighing 194 grams and with a capacity of 12 litres, this is a compact option for light everyday items, a tablet, books and accessories.

How this product avoids the pitfall

The capacity and weight are clearly stated, so you will not mistake a compact bag for a spacious school backpack.

Key benefit & highlights

194 grams, 12-litre capacity, concealed front pocket, side pockets and adjustable ergonomic straps according to the product description.

Suitable for: Buyers looking for premium quality
Case Logic Jaunt WMBP215 backpack

Case Logic Jaunt WMBP215

Why it suits this profile: This laptop backpack is designed for work, study and commuting, with room for laptops of up to 15.6 inches.

How this product avoids the pitfall

The laptop dimensions and three compartments are specified. However, check that your device fits within 385 × 31 × 265 mm.

Key benefit & highlights

23-litre capacity, product weight of 530 grams, three compartments and 100% recycled polyester according to the product specifications.

Suitable for: Specific uses & intensive users
Joma Training III Backpack Navy

Joma Training III Backpack Navy

Why it suits this profile: With a capacity of 24.2 litres and a double base, this model is suitable for training, sportswear, shoes and short trips.

How this product avoids the pitfall

The capacity, dimensions and double base are clearly described. This makes it easier to judge whether the bag suits your sports equipment.

Key benefit & highlights

100% polyester, front pocket, inner compartment, multiple storage options and padded shoulder straps according to the product information.

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 backpacks

What capacity does a backpack for work or school need?

For a laptop, lunch, charger and a few documents, 20 to 25 litres is usually practical. If you carry less, a lightweight backpack of 10 to 13 litres may be sufficient. For lots of books or sportswear, a larger capacity is more convenient. Always compare the litre capacity with the external dimensions and laptop size.

Is a water-repellent backpack suitable for Dutch rain?

A water-repellent backpack can provide protection against splashes and light rain. However, this does not automatically mean that the seams and zips will keep out water for an extended period. In heavy rain, use a rain cover or carry electronics in an additional protective case.

How long does a backpack last?

Its lifespan depends on the material, zips, seams, load and maintenance. Overfilled compartments put extra strain on the seams and zips. Clean the bag according to the instructions and allow it to air-dry. For some models, the minimum statutory guarantee of two years in the EU applies; check the terms for the individual product.