Sticky Top Add to Cart Bar with Size Selector
Explore how mobile layout enhancements led to a 9.6% increase in conversions and a 14% rise in click-through rates, transforming user engagement.
Metric
Add-to-cart rate
Lift change
+2.2%
Control
Variation
If we introduce a top sticky Add to Cart bar with a size selector and preselection, then the add to cart rate will increase on PDPs, because users can complete the purchase flow faster without needing to scroll back up or select sizes manually.
What We Changed
- Introduced a top sticky Add to Cart bar on product pages.
- Added a size selector dropdown to the sticky bar.
- Enabled size preselection to keep the Add to Cart button active.
- Included a "Find my size" link for user guidance.
Detailed breakdown
Conversion Rate
+9.6%
Add to Cart Rate
+2.2%
Click-Through Rate
+14.0%
Key Learnings
- Constant visibility of purchase options reduced decision friction.
- Preselected sizes encouraged quicker add-to-cart actions.
- Improved engagement led to higher conversion and click-through rates.
- Reduced bounce rates by keeping users engaged on product pages.
