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

Buying shoes online is convenient, but an attractive photo and a well-known brand name are not enough. The difference between a comfortable purchase and a pair that stays in the cupboard often comes down to details such as the fit, sole construction and intended use.

When shopping online, pay particular attention to these common pitfalls:

• Choosing based on appearance alone: trainers for everyday use are not automatically suitable as sports shoes, walking shoes or trail running shoes.
• Skipping the size information: an EU size can vary by brand, model and last. Always check the size chart and, where available, the foot length in centimetres.
• Taking marketing claims literally: terms such as “waterproof”, “shock-absorbing” or “extra comfortable” can mean different things. Look at the specific materials, membrane details, sole and fastening.
• Ignoring maintenance requirements: leather shoes, canvas trainers, slippers and synthetic outdoor shoes do not all require the same care.

The key specifications to check

1. Fit and size

Choosing the right size does not start with the number on the box, but with the shape and length of your foot. Measure your feet at the end of the day, when they are generally slightly larger. Compare the result with the size chart for the specific model.

Also pay attention to:

• Last: a standard last does not always suit wide feet.
• Toe room: your toes should be able to move without pressing against the front of the shoe.
• Heel hold: with running shoes, walking shoes and football boots, your heel should not lift out while walking.
• Fastening: laces offer an adjustable fit; elastic or a slip-on design is particularly practical for putting shoes on and taking them off quickly.

Extra checks are important when buying children’s shoes. A child’s foot grows, but an oversized shoe can feel unstable at school, during sport and while playing. Check the size regularly rather than choosing based solely on age.

2. Sole and intended use

The sole largely determines how a shoe feels and where you can use it. A flat rubber sole, for example, is suitable for casual shoes and everyday trainers. For outdoor activities, tread, flexibility and grip are more important.

• Everyday use: look for a lightweight construction, sufficient cushioning and a sole that is not too rigid.
• Running: consider the type of surface, the fit and the construction of the midsole. A model designed for asphalt is not automatically suitable for mud or loose ground.
• Walking and trail running: a deeper tread and reinforced toe can be practical. The product information for the Salomon XA Pro 3D v9 GTX lists, among other features, a GORE-TEX membrane, Quicklace fastening and a Contagrip sole.
• Football and other field sports: check whether the studs are suitable for the surface. According to the product information, the Nike Huarache 9 Varsity Lax FG is designed for firm ground and lacrosse, not as a general running shoe.

3. Material and care

Material affects breathability, weight, appearance and maintenance. Leather can feel sturdy, but requires care. Canvas is generally lightweight and breathable, but can be more sensitive to rain. Mesh often allows more air to pass through, while a membrane may offer protection against moisture according to the product specification.

Check the following before buying:

1. The material of the upper, lining and outsole.
2. Whether impregnation is recommended.
3. Whether cleaning with water is permitted or only with a damp cloth.
4. Whether the shoes can be machine-washed; many models cannot.
5. Whether the product page lists a fixed size or multiple sizes.

A claim about comfort or grip should be read as product information from the brand or seller, not as a guarantee for every user. Foot shape, surface and duration of use all affect the experience.

Recommendations by user type

Suitable for: Budget-conscious beginners

CROCS 203591 SESAME UNISEX 9

Why it suits this profile: The slip-on design is practical for home, leisure and short everyday journeys. The product information lists 100% CROSLITE and size 42-43.

How this product avoids the pitfall

The clearly stated material and size make comparison easier. However, check that size 42-43 suits your foot length.

Key benefit & advantages

Lightweight material, slip-on design and unisex styling for everyday use.

Suitable for: Buyers looking for premium quality

Puma Speedcat OG Dark Myrtle-White 398846-12-38

Why it suits this profile: This low-profile trainer is designed for a polished streetwear and casual look. According to the product information, the model has a leather upper, textile lining and rubber outsole.

How this product avoids the pitfall

The material construction and regular fit are more specific than a general comfort claim. The product information recommends impregnating the shoes before first use.

Key benefit & advantages

Leather upper, lace fastening, flat heel and rubber sole.

Suitable for: Specific uses & intensive users

Salomon XA Pro 3D v9 GTX 472701 41 1/3

Why it suits this profile: According to the product description, this model is designed for trail running and walking on varied terrain. The listed GORE-TEX membrane and treaded sole are suited to wet outdoor conditions.

How this product avoids the pitfall

The intended use, fastening, membrane and sole are all clearly specified. This helps prevent you from choosing an ordinary trainer for muddy or technical trails.

Key benefit & advantages

GORE-TEX membrane, Quicklace system, 3D Advanced Chassis and Contagrip outsole.

Suitable for: Budget-conscious beginners

PUMA Men's Sneakers White-Black-Vibrant Blue-Rickie Orange PUMA Pounce Lite Collection 42

Why it suits this profile: According to the product information, this versatile model is suitable for running, training and everyday use. The listed size is EU 42.

How this product avoids the pitfall

The product information specifies the composition of the upper, lining and sole. Check the insole length before ordering rather than relying solely on EU 42.

Key benefit & advantages

Lightweight foam, rubber PROTREAD sole and an upper containing at least 30% recycled materials according to the product information.

Check this before you order

Use this quick checklist when comparing shoes in different sizes:

• Does the model suit the intended purpose: work, school, leisure, sport or outdoor activities?
• Is the available size actually your size, and have you checked your foot length?
• Is the sole suitable for asphalt, indoor use, grass, woodland paths or wet surfaces?
• Are the materials and care instructions clearly described?
• Does the colour and style match what you are looking for, such as white, black, navy or a neutral shade?
• Are the returns policy, delivery details and statutory guarantee clearly visible on the product page?

For online purchases in the European Union, many consumer purchases are covered by a statutory guarantee. Some product pages also state a minimum statutory guarantee of two years. Check the seller’s current terms and keep your order details.

Frequently asked questions about buying shoes online

How do I determine my shoe size when ordering online?

Measure both feet in centimetres and use the size chart for the model you have chosen. If there is a difference, use the size of your longer foot as the guide. Also consider the last and the type of socks you intend to wear.

Which shoes are suitable for rain?

Look for an explicitly stated waterproof or water-repellent construction and check which component provides this protection, such as a membrane. A leather or synthetic shoe without such a specification is not automatically waterproof.

How long do shoes last?

That depends on the material, frequency of use, surface and maintenance. A pair of casual shoes for light everyday use will wear differently from running shoes, football boots or trail running shoes. Check the sole, seams and fit regularly, and replace shoes when they are visibly worn or no longer fit properly.