Joybuy Insights

Choosing a lightweight backpack: practical buying tips for work, travel and walking

A lightweight backpack may seem easy to choose at first glance. However, many buyers are swayed by a low weight, a striking material claim or a large number of compartments without checking whether the bag suits their everyday needs. The result is a backpack that is too small for a laptop, quickly lets water in during a typical British downpour or becomes uncomfortable as soon as it contains more than a few items.

So watch out for these three common pitfalls:

  • A capacity that does not match how you use it. A 10-litre backpack is suitable for essentials, but not automatically for books, clothing and a large laptop.
  • Confusing “waterproof” with completely watertight. Many models are water-repellent or protect against splashes. That is not the same as long-lasting protection in heavy rain.
  • Confusing lots of compartments with good organisation. A hidden front pocket is useful for keys or a power bank, but also check that larger items remain easy to access.

What features should a lightweight backpack have?

1. Choose the capacity based on what you carry each day

Capacity is usually given in litres. These guidelines can help when comparing models:

  • 4 to 6 litres: for a phone, wallet, keys and a small water bottle.
  • 10 litres: suitable for commuting with compact items, an e-reader, lunch and accessories.
  • 12 litres: a practical mid-size option for students, short trips or a small laptop.
  • 20 litres: more room for walks, sportswear or a short trip.

A model with expandable capacity can be useful if the amount you carry varies. According to the product specifications, the Beneunder LC183 has a capacity of 10 litres in its standard configuration and 13 litres when expanded. The stated expansion is 30 per cent. However, check that the shape and dimensions suit what you want to carry; extra litres do not always mean that every compartment becomes larger.

2. Check the material and water protection

For cycling and commuting in the UK, a water-repellent backpack is often more practical than a bag made from untreated fabric. Look for terms such as water-repellent, splash-resistant and protective coating. These terms do not describe the same level of protection.

According to the product description, the Beneunder LC183 is made from high-quality nylon that is said to withstand wind, rain and stains. As this is a brand and product claim, you should regard it as a feature stated in the product information, rather than a guarantee that the contents will stay dry during prolonged heavy rain. For valuable electronics, a separate cover may be advisable.

For care, the product details for this model recommend wiping it with a damp cloth and allowing it to dry naturally. Machine washing and prolonged exposure to direct heat are not recommended.

3. Consider comfort, laptop space and fit

A lightweight bag is only comfortable if the shoulder straps are easy to adjust and the backpack does not constantly pull to one side. Therefore, check:

  • the width and adjustability of the shoulder straps;
  • whether a chest or waist strap is needed for walking or cycling;
  • whether the laptop compartment is suitable for your laptop size;
  • whether the backpack remains compact enough on busy public transport.

A backpack with a laptop compartment is not automatically suitable for every laptop. A model for a 15.6-inch laptop offers more room than a compact 10- or 12-litre backpack. Measure your laptop with its protective case and compare this with the stated dimensions of the compartment.

Recommended models for different uses

Suitable for: Budget-conscious beginners
NINETYGO Tiny Backpack orange

NINETYGO Tiny Backpack, Dual-Shoulder Book Bag, Orange

Why it suits this profile: With a stated weight of 194 grams, this is a compact choice for students, short walks and everyday shopping. The bag has room for items including an iPad, books and daily accessories.

How this product avoids the pitfall

The capacity and weight are clearly stated in the product information. The bag also has a hidden front pocket and side pockets for small items and a bottle.

Key benefit & advantages

194 grams; water-repellent material according to the product description; adjustable shoulder straps and quick access to small essentials.

Suitable for: Buyers looking for premium quality
Beneunder LC183 beige

Beneunder LC183, expandable 10L backpack, beige

Why it suits this profile: This unisex backpack is designed for commuters, travellers and walkers who want a small bag that can grow with changing loads.

How this product avoids the pitfall

The standard and expanded capacities are stated separately: 10 and 13 litres. This makes it easier to match the capacity to a lighter or fuller working day.

Key benefit & advantages

Stated weight of 8.3 oz; expandable design; protective fabric against wind, rain and stains according to the product information.

Suitable for: Specific uses & intensive users
PELLIOT Trail Running Backpack 20L black with yellow

PELLIOT Trail Running Backpack Unisex, 20L

Why it suits this profile: This model is designed for trail running, cycling and intensive outdoor activities where a stable fit and quick access to your belongings are important.

How this product avoids the pitfall

The product specifications list different sizes based on torso length and waist measurement. This helps prevent a fit that is too loose or too tight.

Key benefit & advantages

20 litres; hard-wearing grid polyester fabric according to the product information; multiple compartments for water, tools, snacks and a phone, among other items.

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 lightweight backpacks

Is a lightweight backpack suitable for commuting?

Yes, as long as the capacity matches what you carry. A 10-litre backpack may be enough for just lunch, documents and small accessories. If you carry a laptop, charger, sportswear and a water bottle, look for a laptop backpack with more compartments and a capacity of around 12 to 20 litres.

How do I care for a water-repellent backpack?

Always follow the manufacturer’s care instructions. In many cases, wiping it with a damp cloth and then allowing it to air-dry is sufficient. Do not use harsh cleaning products, and do not machine-wash the bag if this is not recommended. A water-repellent coating can gradually become less effective through intensive use and cleaning.

What capacity is suitable for walking or a short trip?

For a short walk, 10 to 12 litres is often enough for drinks, an extra layer of clothing and personal belongings. For a short trip or a day with more luggage, a 20-litre backpack is more practical. As well as capacity, consider adjustable straps, compartment layout and weight distribution.