Best practices by industry
Best practices for fashion and footwear stores
In fashion, the question that decides the purchase is fit. Shoppers want to know which size to choose and how the item will look on them. Give every product detailed sizing information, show it on a model whose height and size you state, photograph every colour and show the fibre composition before purchase as EU law requires. Baymard found that 83% of desktop apparel sites and 87% of mobile ones do not provide sufficient sizing information.
By the MoraLab team · Updated · 4 min read
Why fashion is different
Clothing and shoes are bought to be worn, and online the shopper cannot try them on. That makes fit the question behind both hesitation before the order and returns after it. Fashion also has more variants than most categories. One product can come in ten sizes and five colours, and every combination needs to be shown and kept in stock accurately.
Conversion benchmarks reflect this. Dynamic Yield reports 2.77% for fashion, accessories and apparel globally, while IRP Commerce reports 1.62% for UK and Irish fashion stores. The spread is large, so compare yourself with your own history rather than either figure.
Sources: Shopify: Ecommerce conversion rate benchmarks (Aug 2026, citing Dynamic Yield and Statista); IRP Commerce: UK and Ireland ecommerce market data (Sept 2026)
Sizing information that answers “which size?”
Baymard's apparel research found that 83% of desktop and 87% of mobile apparel sites do not provide sufficient sizing information, and in testing some shoppers who could not find the size guide guessed or gave up. Its recommended size guide covers the following:
Letter and numeric sizes
Both S, M, L and the numeric sizes your brand uses, side by side.
Measurements in centimetres
Chest, waist, hip, inside leg or foot length, depending on the product. Add inches if you sell outside Europe.
International conversions
EU, UK and US sizes, especially for shoes.
How to measure
Short instructions or a drawing showing where to measure.
A guide that matches the product
A jeans size guide on a jeans page, not a generic chart for the whole store.
Placement near the size selector
The link sits right beside the size buttons, and closing the guide returns the shopper to the same place on the page.
The model's measurements
So the shopper can compare the model's body with their own.
Source: Baymard Institute: 83% of apparel sites don't provide sufficient sizing information (2022)
Images: on a model, every colour, every detail
Show every product on a person. Baymard found that 23% of sites still lack human-model images for apparel and accessories. Write the model's height and size under the image, and if you can, show the item on more than one body type.
Photograph every colour rather than recolouring one image, because colour is the most common thing shoppers check against the photo when the parcel arrives. Add close-ups of fabric, stitching, zips and soles. Those details answer the quality question that a shopper in a physical store would answer by touch.
Source: Baymard Institute: Product page UX pitfalls and best practices (updated Mar 2026)
Video shows fit and movement
Fashion is one of the categories where video earns its place on the product page. A few seconds of a model walking shows how fabric falls and moves, how a dress swings and how a shoe flexes, which no still image can do. Keep it short, silent by default and placed after the main image in the gallery.
Fibre composition and care must be on the page
Under the EU Textile Regulation, the fibre composition of a textile product must be clearly visible to the consumer before purchase, also when the purchase is made online. Write it on the product page in plain text, for example “95% organic cotton, 5% elastane”, not only on a photo of the label.
Care instructions are not covered by the same rule, but shoppers look for them, and they prevent complaints about shrinking or fading. Put them beside the composition.
Source: EUR-Lex: Regulation (EU) 1007/2011 (textile fibre names and labelling)
Show availability before the product page
Few things frustrate a fashion shopper more than finding the right item and then discovering their size is sold out. Put a size filter near the top of category pages, show which sizes are in stock, and on the product page mark sold-out sizes instead of hiding them. Offer a back-in-stock alert for the missing ones.
Turn return reasons into fit notes
The NRF and Happy Returns estimate that 19.3% of online sales were returned in 2025, and fashion is one of the categories where fit drives many of those returns. Record a reason for every return and read them per product. When “runs small” keeps coming up, write it on the page: “Runs small. Choose one size up if you are between sizes.”
Reviews help in the same way. Let customers rate fit (too small, true to size, too large) and show the result next to the size selector.
Source: NRF and Happy Returns: 2025 Retail Returns Landscape (Oct 2025)
Frequently asked questions
How do I reduce returns in a fashion webshop?
Give detailed, product-specific sizing information, state the model's height and size, photograph every colour, and add fit notes based on return reasons and reviews. Most fit-related returns come from a size or colour the page did not make clear.
Do I need a size guide for every product?
You need one for every product type. A shoe, a pair of jeans and a jacket need different measurements. Link the matching guide from each product page, close to the size buttons.
Is it enough to show the fibre composition on an image of the label?
No. The EU Textile Regulation requires it to be clearly visible and legible before purchase. Write it on the page as text, where shoppers and search engines can both read it.
Sources
- Shopify: Ecommerce conversion rate benchmarks (Aug 2026, citing Dynamic Yield and Statista)
- IRP Commerce: UK and Ireland ecommerce market data (Sept 2026)
- Baymard Institute: 83% of apparel sites don't provide sufficient sizing information (2022)
- Baymard Institute: Product page UX pitfalls and best practices (updated Mar 2026)
- EUR-Lex: Regulation (EU) 1007/2011 (textile fibre names and labelling)
- NRF and Happy Returns: 2025 Retail Returns Landscape (Oct 2025)
Sources checked 20 October 2026. Figures are reported as the publishers state them; where sources disagree, the article says so.