Testing Fit Feedback Votes on a Fashion Product Page

When size mismatch stands out among return reasons, customer service keeps getting fit questions, or reviews often say things like "runs small," fit votes are worth a test. When the summary steers shoppers to the right size, they choose it more often, and size-related returns and fit questions fall while purchases hold. If complaints cluster on one product, the garment's own fit may be off, so check its measurements first. Build the summary only from real responses, skip percentages for products under the minimum response count, never round in the product's favor, and keep the size chart and return policy text fixed.

Size-related return rate

Compare size-related returns for orders that have completed the same follow-up period in each arm; read this conditional rate alongside purchase conversion and product mix.

Also track

• Purchase conversion rate (CR)Check whether the mix of purchasers changes alongside returns.
• Size chart open rateSee whether fit feedback changes use of the size chart.
• Add-to-cart rateTrack any material drop in add-to-cart.
• Customer service contactsTrack size-related contacts relative to traffic or purchases.

• SummaryAdd a predefined fit summary based on real responses.
• Placement and formatSet the summary's placement and presentation before the test.
• Data thresholdSet and maintain a justified minimum response count.
• Repeated displayDo not add a second display at size selection in this comparison.
• CategoryReview apparel categories separately.

1. 1Size-related return rate is calculated only over buyers, so a drop is not a success by itself. If purchase conversion or add-to-cart falls noticeably, the summary may have put off shoppers unsure of the fit; read it alongside product mix.
2. 2Read the result by apparel category and compare only orders that have completed the follow-up period in each arm. The summary should stay optional information; if shoppers must vote before choosing a size, the result shows the effect of an added hurdle rather than the summary.
3. 3Returns arrive late, so the difference can stay unclear for a while; do not decide before the follow-up period ends. Use the current size-related return rate as the baseline in the sample size calculator to find how many orders each arm needs, then add the follow-up period to the time it takes to collect them.