Joybuy Insights

Buying shoes online: how to choose the right pair without making a costly mistake

Buying shoes online may seem straightforward, but an attractive photo tells you little about the fit, material or intended use. A trainer for everyday wear has different requirements from football boots for natural grass. Small differences in sizing can also make a big difference with men’s shoes, women’s shoes and children’s shoes.

The most common pitfalls are:

  • Choosing based on appearance alone: a trainer may look stylish but have a narrow last or little adjustability.
  • Skipping the size information: a size 42 is not exactly the same across every brand or model. With children’s shoes, the required size can also change quickly.
  • Buying a shoe for the wrong purpose: FG football boots are designed for firm natural grass and are not automatically suitable for artificial grass, indoor football or wet surfaces.
  • Underestimating maintenance: leather, synthetic leather, mesh and textile each require a different approach. Machine washing can damage the material, adhesive and shape.

Which specifications should you check?

1. Fit, size and width

Measure both feet at the end of the day on a sheet of paper. Note the longer foot and compare it with the product’s size chart. As well as length, pay attention to the width and the shape of the toe box.

Some models show the width as a letter. For example, the Skechers D'Lux Walker - Scrambler is available in sizes 42.5 and 45 with width D and a regular fit. According to the product description, this model is true to size. That is a useful indication, but no guarantee that the same size will fit identically in another brand.

For children, the measured foot length is more important than age alone. According to the product information, the Geox B Lightyloo is recommended with around 0.5 to 1 cm of extra room for the toes. If the foot falls between two sizes, the next size up is recommended.

2. Material and fastening

Check exactly what is stated on the product page:

  • Leather: can mould to the foot, but requires suitable care and protection from moisture.
  • Synthetic leather: is often easy to wipe clean, but feels and behaves differently from natural leather.
  • Mesh and textile: may offer better breathability, but are not automatically waterproof.
  • Rubber or EVA: check which material is used for the sole and whether it is flexible or firm.

Laces give you room to adjust the fit. A hook-and-loop fastening or elastic laces may be more practical for children. Sandals such as the Birkenstock Arizona have two individually adjustable buckles, allowing you to fine-tune the fit around the foot.

3. Intended use and surface

First decide what you need the shoes for. Casual shoes and trainers are suitable for everyday wear, while sports shoes are designed with movement and grip in mind. With football boots, the sole designation is important:

  • FG stands for Firm Ground: firm, natural grass pitches.
  • The length and positioning of the studs affect grip and freedom of movement.
  • Do not routinely wear FG boots on hard surfaces; this can affect walking comfort and their lifespan.

According to their product descriptions, the Joma Super Copa 2401 FG and Joma Striker 2502 FG are designed for firm natural grass. Therefore, use them only for the stated purpose and clean them after use with a soft brush or damp cloth.

Recommendations by buyer type

Suitable for: Budget-conscious beginners
US POLO ASSN MEN SNEAKERS ARIS001M/6YM1 Black 45

US POLO ASSN MEN SNEAKERS ARIS001M/6YM1 Black 45

Why it suits this profile: A low-cut model for everyday wear, with a black colourway, lace fastening and standard width. The combination of synthetic leather and mesh works well with a casual wardrobe.

How this product avoids the pitfall

The product information specifies the fastening, width, sole and materials. This means you do not have to rely on the product photo alone.

Key benefit & advantages

Lightly padded insole, rubber sole, closed toe and lace fastening.

Suitable for: Shoppers looking for premium quality
BIRKENSTOCK Arizona Natural Leather Regular Black 42

BIRKENSTOCK Arizona Natural Leather (Regular) Black 42

Why it suits this profile: For shoppers who value natural leather, adjustability and a recognisable sandal design. The two buckles allow for an individually tailored fit.

How this product avoids the pitfall

The product description mentions the upper material, cork footbed construction and EVA sole. This makes it clear what you are buying and how to care for the sandal.

Key benefit & advantages

Natural leather, cork footbed, EVA outsole and two metal buckles.

Suitable for: Specific use & intensive users
Joma Super Copa 2401 FG 42.5

Joma Super Copa 2401 FG SUPW2401FG 42.5

Why it suits this profile: Designed for footballers who train or play on firm natural grass. The FG sole, lace fastening and regular fit are suited to this specific use.

How this product avoids the pitfall

The product details explicitly mention FG and firm natural grass. This makes the intended playing surface clearer than it would be with a general sports shoe.

Key benefit & advantages

Eco-leather upper, rubber sole, Exo Counter technology and size 42.5 for a foot length of approximately 270–273 mm according to the size chart.

Suitable for: Shoppers who need larger sizes
Skechers Track Syntac 232398 BBK 45

Skechers Track Syntac 232398 BBK 45

Why it suits this profile: A black sports shoe in size 45 for everyday wear and light sporting activities. The lace fastening helps you adjust the fit.

How this product avoids the pitfall

The product page specifies the size, width D, regular fit and material. This makes comparison easier than searching by colour or brand alone.

Key benefit & advantages

Leather and mesh upper, rubber sole, Memory Foam insole and non-removable insole.

Care also affects how long shoes last

After use, allow shoes to dry at room temperature and avoid direct heat, such as a radiator. Use a suitable care product for leather shoes. A soft cloth and mild soap are usually more suitable for synthetic materials and mesh; always follow the instructions on the product page.

A shoe-care kit can be useful for leather shoes. The JORDAN&JUDY Horsehair Shoe Shine Brush 4-Piece Set features, among other things, a beechwood handle and is designed to be part of a regular care routine. Before use, check that the brush is suitable for the material and test any product on an inconspicuous area first.

Also check the returns policy, available sizes and warranty information. The product information for various models states a minimum two-year legal guarantee under European consumer law. Check the seller’s current terms and conditions when purchasing.

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 shoes online

How do I determine my shoe size online?

Measure both feet in millimetres or centimetres and use the size chart for the specific model. Also check the width, fit and the manufacturer’s advice. If you are between two sizes, the returns policy may be important.

How long do shoes last on average?

This depends on the material, use, surface and care. A pair worn every day will wear out faster than shoes that are rotated. Pay particular attention to the sole, stitching and inner lining. Allow shoes to dry completely between wears and use them only for their intended purpose.

Are more expensive shoes automatically more comfortable?

No. Price is not a direct measure of fit or ease of use. Instead, compare specific details such as the material, sole, fastening, width, insole and size chart. A model that suits your needs may be more practical than a more expensive pair with the wrong fit.