Joybuy Insights

Buying shoes online: how to choose trainers, sports shoes and running shoes that suit you

When you want to buy shoes online, you’ll often see hundreds of styles described with terms such as “lightweight”, “breathable” and “extra cushioning”. These words only mean something if you know which materials, fit and sole they refer to. A low price can be tempting, but the wrong size, insufficient grip or an uncomfortable fit can quickly make a purchase impractical.

This guide will help you compare your options. Whether you’re looking for running shoes, trail running shoes, comfortable everyday shoes or children’s trainers, start by considering how you’ll use them, then think about the look.

Three common pitfalls when buying shoes online

1. Assuming “lightweight” means suitable for every surface

A lightweight shoe feels good to walk in, but its low weight says nothing about its grip or stability. A flat rubber sole may be enough for tarmac. For woodland paths, mud or loose stones, you’ll need a tread designed for those conditions.

So check:

  • the type of surface the shoe is designed for;
  • the tread and material of the outsole;
  • whether the shoe is suitable for road, trail or both;
  • whether the fit provides enough room over longer distances.

2. Taking “breathable” at face value without checking the material

A shoe may be described as breathable even if its upper lets very little air through. Mesh, woven textile and ventilation panels generally allow more airflow than fully enclosed synthetic material. On the other hand, a very open upper may offer less protection from rain and dirt.

Check the lining, too. A shoe without a lining may allow more airflow, but it won’t feel as comfortable for everyone. Read the material details and look at the product photos before you order.

3. Relying on the European size alone

Size 42 isn’t exactly the same across every brand or style. The shape of the last, the shoe width and the amount of room around the toes all affect comfort. Measure both feet at the end of the day and compare the longer foot with the size guide.

For children, “buying room to grow” doesn’t mean choosing shoes that are far too big. Too much extra room can make walking less stable. Check the stated fit, width and fastening, such as laces, elastic laces or Velcro trainers.

The key features to check

Upper: ventilation versus protection

For warm days, everyday wear and sport, breathable sports shoes with mesh are a practical choice. For running, a combination of mesh and woven material can offer a good balance between airflow and durability. For trail running, reinforcement around the toe and sides is useful when you’re running past branches and stones.

Midsole: cushioning and responsiveness

Many sports shoes use EVA foam in the midsole. This material can help absorb impact and give the sole a responsive feel. The amount of cushioning is a personal choice: a soft sole feels comfortable when walking, while some runners prefer to feel more connected to the ground.

Bear in mind that “lots of cushioning” doesn’t guarantee a better running experience. Consider the thickness, material and intended use. Cushioned shoes are often comfortable for everyday walking; on technical terrain, balance and grip are just as important.

Outsole: grip, wear and terrain

A rubber outsole with tread is suitable for everyday use and varied surfaces. For trail running shoes, the shape of the lugs matters more. Deep or clearly defined tread can provide more grip on mud and loose ground, while a less aggressive tread can feel more comfortable on tarmac.

Also check the product details for specific features. For example, PELLIOT models are described as using ROCKYTEC rubber; Vibram Megagrip is only mentioned for certain versions in the product description. Always check the version you’ve selected rather than assuming every colour or size has the same sole.

Recommendations by type of user

Suitable for: Budget-conscious beginners
Skechers Slip-Ins Summits Key Pace

Skechers Slip-Ins: Summits - Key Pace 232469-BBK 44

Why it suits this profile: A practical choice for adults looking for an everyday trainer with an easy fastening. The slip-on design is well suited to commuting, shopping and walking around town.

How this product avoids the pitfall

The product details specify a regular fit, a round toe and a treaded rubber sole. This makes it easier to assess the fit and grip than if you were relying on “comfort” alone.

Key benefit & features

Textile upper, Air-Cooled Memory Foam footbed according to the product description, and rubber outsole. Size 44 is listed as a regular fit.

Suitable for: Shoppers looking for premium quality
New Balance U574RUS trainers

New Balance U574RUS39.5

Why it suits this profile: Ideal if you’re looking for a classic trainer to wear with casual outfits and for everyday use. This style is a good match for shoppers seeking New Balance 574 trainers with a mix of textile and suede.

How this product avoids the pitfall

The materials are clearly specified: suede and breathable mesh in the upper, a supportive midsole and rubber underneath. Do check that suede suits your care routine.

Key benefit & features

Suede and mesh, a rubber outsole and a retro profile. This combination is designed for everyday wear and sporty casual outfits.

Suitable for: Specialist use & frequent users
PELLIOT Unisex Breathable Lightweight Running Shoes

PELLIOT Running Shoes Unisex – Breathable & Lightweight, Obsidian Black (EU 42)

Why it suits this profile: Designed for runners looking for a lightweight shoe for a mix of urban roads and off-road terrain. This style is worth considering if you’re comparing trail running shoes with a breathable upper and good grip.

How this product avoids the pitfall

Rather than simply calling it “lightweight”, the product details describe the mesh and woven upper, EVA midsole and ROCKYTEC rubber. This lets you assess ventilation, cushioning and grip separately.

Key benefit & features

Sandwich mesh and woven textile, EVA foam and a rubber outsole with a tread designed for varied terrain. Standard and narrow versions are listed; check the version you’ve selected.

Suitable for: Parents who want their children to put their shoes on independently
New Balance PC574EVN children's trainers

New Balance PC574EVN28.5

Why it suits this profile: A practical option for school, play and everyday wear. The elastic fastening and Velcro strap make these children’s trainers easy to put on.

How this product avoids the pitfall

The size, fastening, materials and sole are all listed separately. That means you can look beyond the colour or brand and check whether the shoe is suited to everyday use.

Key benefit & features

Suede, synthetic material and textile mesh, an EVA midsole, rubber treaded outsole and Velcro fastening. The product details state that the statutory EU warranty is at least two years.

Looking for more options?

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

How to check your choice before ordering

  • Measure your feet and compare the measurements in millimetres with the size guide.
  • Check whether the shoe is designed for tarmac, gym workouts, walking or trail running.
  • Look at the upper, midsole and outsole, rather than relying on marketing terms alone.
  • Check the care instructions. Some styles should not be put in the washing machine or tumble dryer.
  • Check the returns policy, available sizes and selected version.
  • For children, choose a suitable width and a fastening they can manage themselves.

Frequently asked questions about buying shoes online

How do I know which size to order online?

Measure both feet while wearing the socks you’d normally wear. Use the measurement for the longer foot and compare it with the size guide for that specific style. Also check the stated fit, such as regular, narrow or wide. If you’re unsure, the returns policy is important.

How long do running shoes last?

Their lifespan depends on how often you run, your body weight, the surface, how well you care for them and how much the tread has worn. Check regularly for a smooth outsole, tears in the upper or a midsole that’s losing its shape. There’s no fixed mileage limit that applies to every style.

Are lightweight running shoes suitable for everyday use?

They can be, as long as the sole, fit and grip suit your route. A style designed for tarmac isn’t automatically suitable for muddy paths. If you run on both types of surface, consider a hybrid road-to-trail style and compare the product details carefully.