Shoppers need measurements relevant to the product type.
Size guides and measurements beside selection
A size label alone gives little basis for judging fit. Provide relevant measurements and explain how to take them.
Research context: Baymard · Apparel sizing information ↗
Use this when sizing affects purchase; digital gift cards need no measurement chart.
Try the pattern
Task and expected result
- 01
Choose M, open the guide and switch to inches: 72 cm must become 28.3 inches, not 72 inches.
- 02
Close with Escape: focus and the selected M must be retained in the product form.
- 03
Open the guide from quick-add: use the same product and size without opening another product page.
How to investigate value
Ask shoppers to explain their variant choice and fit. Later measure confirmed purchases per eligible product visitor, with return reasons as follow-up.
Watch for side effects
Wrong sizes, unknown details shown as facts, mismatched expectations and product-related support/returns.
This is a proposed investigation, not a measured result. Choose one hypothesis and define the audience before testing.
Build a measurement plan for this concept ↗