Adding a free pair of socks to shoe purchases was tested to boost conversion rates. Discover the impact of this promotion on sales performance.
Free Socks Promotion


If we advertise a free bonus item like socks with purchase, then conversion rate will increase because the added perceived value motivates users to complete their purchase.
What We Changed
- Highlighted the free socks offer on the product detail page.
- Automatically added socks to cart with shoe purchases.
- Mapped sock size to shoe size for a seamless experience.
The Results
We dig through every data source to map what's actually broken. By the end, there's no confusion.
Average order value
visitors
Lift in conversion rate
Key Learnings
- Mobile users may require different promotion strategies.
- Proper mapping of additional items to main products enhances user experience.
- Value-added offers can positively impact conversion rates, especially on desktop.
- Due to mixed results, further testing was conducted.
Detailed results breakdown
Average order value
+0.0%
Lift in conversion rate
-0.6%
Change in revenue per visitor
-0.6%
Change in amount of orders
-0.8%
Revenue change
-0.80%
Start with 3 experiments.
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Who qualifies?
30,000+ Monthly sessions.
Minimum traffic needed to run statistically significant tests.
Running on Shopify or Shopify Plus.
Our specialty - we don't work with other platforms.
Investing in paid traffic.
We work with stores committed to growth, not hobbyists.
Ready to invest in systematic CRO.
You understand testing takes time - no magic bullets.
Why free?
The best proof is results. Three real experiments show you exactly how we work and whether it drives revenue for your specific store. You keep everything - no strings attached.
Our bet
We're confident enough in our process to invest our time upfront. If the tests work, you'll see the value in continuing at $5,950/month. If not, you got free optimization work.
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Learn how personalizing the homepage for new and returning visitors increased conversion rates significantly. Read the full write up.
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