Joybuy Insights

Buying trainers and sports shoes online: how to choose a pair that suits the way you use them

Buying shoes online may seem straightforward, but an appealing photo and a well-known brand name reveal little about fit, grip or everyday comfort. If you are planning to buy trainers or sports shoes online, it is worth comparing how you will use them, the sizing and the construction first. This applies to men’s trainers, women’s trainers, children’s shoes and sports shoes for running, walking or outdoor activities.

Three common pitfalls when buying shoes online

1. Mistaking a soft sole for good cushioning

A thick or soft midsole may feel comfortable when trying the shoe on, but that does not automatically mean the shoe is suitable for long walks or running. Pay attention to the material and the construction of the sole. According to the product description, EVA, Dreamstrike foam, Cloudfoam and similar foam materials may provide a softer feel underfoot, but the experience varies from one foot and usage situation to another.

For everyday use, a comfortable shoe is often sufficient. For longer distances, cushioning, stability and a suitable fit are more important than simply having a soft feel.

2. Relying solely on the EU size

A size 42 does not offer exactly the same internal space in every brand or model. The width of the last, the shape of the toe box and the thickness of the lining also affect the fit. Therefore, always check:

  • the stated EU size and any UK, US or centimetre sizes;
  • the stated width, such as standard, D or G;
  • whether the model is described as true to size;
  • the space around the toes and the fit around the heel.

A slightly roomier toe area can be helpful in running shoes. Children’s feet also grow quickly, but too much extra space can cause the foot to slide inside the shoe.

3. Using a trainer for an activity it was not designed for

Casual trainers are intended for everyday use and are not automatically suitable for running. A lifestyle model such as the Nike Dunk Low or New Balance 574 may work well for work, school or leisure, but it has a different construction from running shoes or trail-running shoes.

For unpaved paths, tread, grip and protection are important. On asphalt, you should focus more on a smooth roll-through, breathable materials and cushioning. A walking shoe or outdoor-focused trainer may be more practical on mixed terrain than a smooth casual sole.

Which specifications should you compare?

Fit and fastening

Laces allow you to adjust the tension around the instep. Hook-and-loop fastening is practical for children who want to put their shoes on themselves. A standard width does not suit everyone; if you have a wider forefoot, look for a model with a roomier last or wide toe box.

As well as the size, look at the product photos and description. A closed toe, padded collar and removable insole can affect ease of use. For children’s shoes, check whether the insole is removable if that is important to you.

Upper and ventilation

Mesh and textile generally allow more air to circulate than synthetic leather. This can be useful during sport or in warm weather. Synthetic leather and suede look more robust and are often easier to clean locally, but they may be less breathable.

A breathable upper does not guarantee that your feet will stay dry. According to the product description of some models, the material is designed to help disperse air or moisture more effectively. Treat this as a product specification rather than a guaranteed result for every user.

Sole, tread and surface

A rubber outsole provides grip and durability, but the tread also helps determine what the shoe is suitable for. Look for:

  • smooth or fine tread: mainly suitable for everyday use and hard surfaces;
  • defined rubber tread: offers more grip on walking paths;
  • deep trail tread: designed for mud, loose surfaces or uneven terrain;
  • wide base: may help provide a stable feel, depending on your foot and running style.

For example, Salomon running shoes and trail models often have an outsole that, according to the product information, is designed for mixed terrain. Use such claims as a starting point, and also check that the fit and size are right for you.

Recommendations by user profile

Suitable for: Budget-conscious beginners
Adidas Run 70s 2.0 GRESTR/FTWWHT/GUM3JI4922 40

Adidas Run 70s 2.0

Why it suits this profile: The retro style works well with everyday outfits and, according to the product description, the model feels lightweight, with a breathable upper and rubber outsole.

How this product avoids the pitfall

The description names specific materials and a rubber sole rather than using general comfort claims alone. Use the shoe mainly for everyday wear, not as a specialised running shoe.

Key benefit & advantages

Textile and synthetic materials, a rubber outsole and a classic low-profile design.

Suitable for: Shoppers looking for premium quality
Adidas Supernova Ease M CBLACK/CBLACK/CARBONIH2580 44 2/3

Adidas Supernova Ease M

Why it suits this profile: According to the product description, this model is designed for short to medium-distance runs, with a mesh upper and a full-length Dreamstrike midsole.

How this product avoids the pitfall

The description gives a clear intended use and specifies the sole construction. This makes it easier to distinguish the model from casual adidas trainers.

Key benefit & advantages

Breathable mesh, lace fastening, rubber studs and a Dreamstrike midsole according to the product information.

Suitable for: Specific uses & intensive users
Salomon DRX DEFY GRVL L47809700 43 1/3

Salomon DRX DEFY GRVL

Why it suits this profile: The product information mentions Active Chassis, Energy Foam and an All Terrain Contagrip outsole for gravel and mixed terrain.

How this product avoids the pitfall

The intended terrain and sole technology are described clearly. This helps prevent you from choosing a smooth casual trainer for unpaved or wet paths.

Key benefit & advantages

Mesh upper, EVA-based Energy Foam and rubber All Terrain Contagrip sole according to the product description.

How to compare shoes before ordering

First, create a shortlist based on your activity:

  • For everyday use: consider the weight, material, care requirements and a sole suited to asphalt and pavements.
  • For running: compare cushioning, fit, stability and the stated distance range. Lightweight running shoes are not automatically more comfortable for every runner.
  • For trail running and walking: check the tread, grip and protection provided by the upper.
  • For school and children: choose a suitable size, an easy fastening system and a flexible sole. New Balance children’s shoes with hook-and-loop fastening or Skechers children’s shoes can be practical when putting them on independently is important.
  • For style: models such as the Nike Dunk Low, New Balance 574 and casual trainers are mainly designed for appearance and everyday use. Do not assess them using the same criteria as sports shoes.

Before paying, also check the delivery information, returns policy, available size and statutory guarantee. Some adidas models in this overview state a statutory guarantee of at least two years; always check the information on the specific product page.

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 buying trainers and sports shoes online

How do I know which shoe size to order online?

Measure your foot at the end of the day while wearing the socks you normally use. Compare the length with the model’s size chart and check the width too. If you are unsure between two sizes, the returns policy is important, as brands and models may fit differently.

How long do trainers and sports shoes last?

Their lifespan depends on usage, the surface, body weight, care and materials. Look for wear on the outsole, tears in the upper and a midsole that has collapsed or become misshapen. Sports shoes used intensively may lose their original properties sooner than shoes worn for gentle everyday activities.

Are expensive shoes automatically more comfortable?

No. Comfort mainly depends on fit, width, cushioning and the purpose for which you use the shoe. An affordable model in the right size may feel more comfortable than a more expensive model that is too narrow or too large. Therefore, compare the technical specifications and intended use first, and only then consider the price.