Size charts on product pages: reduce returns and doubt
A size chart next to the size selector answers the commonest apparel question. See where to place it and what to include.
2 min read
Area
CRO & UX
Severity
Medium
Fix effort
Medium
Stores failing
Not enough data
For clothing and shoes, size is the biggest source of doubt and returns. A size chart linked next to the size options answers it at the moment of choice. This check looks for a size chart link near the size selector.
Why it matters
Shoppers who are unsure of size either guess, order two and return one, or leave. A clear chart reduces all three. Measurement conversions and fit notes help further.
What the audit looks at
The audit looks for a size guide link, button or table near the size options on the product page.
What usually causes it
- A size guide only on a separate page
- A chart that opens as a poorly sized pop-up on mobile
- A chart that is generic and not for the specific item
- A link placed far from the size selector
How to fix it
Link a size chart next to the size options. The effort is medium, a theme or template edit that takes an afternoon.
- Sizing uncertainty is a leading reason for returns in clothing and footwear.
- Put a "Size guide" link directly beside the size selector, opening a table in a modal.
- Say how the item fits (runs small, true to size) and what the model is wearing.
On Shopify
- Create a page for the size guide under Online Store > Pages, then add a link to it next to the size options in the product template, or use a size chart app if you need one per product.
On WooCommerce
- Add the chart to a page or a tab on the product, and link to it from the size attribute, or use a size chart plugin.
How to check it yourself
- Open an apparel product and look for a size guide next to the options.
- Click it on a phone and check it is readable.
- Check the chart matches the product.
Frequently asked questions
Does this apply to non-apparel stores?
It applies wherever size matters, such as furniture and bags. Otherwise the check is not applicable.
What else reduces fit doubts?
Model size, fit notes and customer fit reviews.
Related checks
Check your own store
See whether your store passes this check
Paste your store URL. The audit loads your pages in a real browser and shows the result for this check with the evidence behind it.