Model size overlay on fashion product images: +4.61% RPV
Test run byDave DiederenSyntra Labs
Commentary byLiftArchiveOur analysis, not theirsAdding a small overlay to product images stating the model's height and size lifted revenue per visitor by 4.61% in Dave Diederen's test. Conversion rate rose 2.63% and average order value rose 1.93%. They say it has won across several fashion brands.
- Revenue per visitor: +4.61% (A$4.94 to A$5.16). This was the primary metric.
- Conversion rate: +2.63% (6.44% to 6.61%). A modest gain.
- Average order value: +1.93% (A$76.67 to A$78.15).
- All ranges cross zero (RPV -12% to +24%), so this single test is not conclusive.
The change
The variant adds a model height and size note on the product image.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
Fashion product images showed the model with no information about their height or the size they wore.
Variant
A small text badge was added on the product image, in the format "Elly is 5'8" and wears a size S".
Why it likely won
Our reading of the result, not the practitioner's claim.
- fit worry is a common reason fashion shoppers leave, and a reference model gives them something to compare against.
- putting the info on the image means shoppers see it while looking at the fit, without opening a size guide.
- it may also help pick the right size, which could matter for returns.
Caveats: The lift is small and the ranges cross zero, so it is not a confirmed win on its own. Sample size and test length were not shared. The mockup in the post used a different brand as a visual example only.
Who ran it
Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.
View the original post on X
How to run this test on your store
- Hypothesis
- If we show the model's height and size on product images, then more shoppers will buy because they can judge fit against a real person.
- Primary metric
- Revenue per visitor
- Guardrails
- Return rate
- Size exchange rate
- Average order value
- Who should test it
- Fashion and apparel stores that shoot products on models. It won't apply to flat-lay only imagery or products where fit doesn't matter.
Questions
Should fashion stores show model height and size?
In this test, a short model size note on the image lifted revenue per visitor 4.61%. The ranges crossed zero, so treat it as a modest likely gain.
Where should model size info go?
This test placed it as a small overlay at the bottom of the product image, so shoppers see it while judging fit.
What should a model size note say?
Keep it short: the model's name, height and the size worn, like "Elly is 5'8" and wears a size S".
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