65% CAC Reduction for Sustainable Fashion
At a glance
- CAC down 65% in eight weeks after offer and landing page fixes.
- Proof-led creative outperformed generic green ads by 2 to 3x.
- AI targeting scaled only after conversion signal and creative volume were ready.
- Blended ROAS improved 48% without raising discounts.
Composite case study. Metrics aggregate anonymized sustainable fashion engagements. Figures in EUR where applicable.
Key metrics
| Metric | Before | After |
|---|---|---|
| CAC | Baseline | −65% (8 weeks) |
| Blended ROAS | Baseline | +48% |
| Proof-led vs generic creative | 1x | 2 to 3x |
| AI targeting | Enabled early | Scaled after readiness |
Challenge
Rising CAC on paid social with high return rates and skeptical buyers. AI targeting had been switched on before the site and offer were ready.
Solution
We fixed offer clarity and sizing guidance, launched proof-led creative tests, then enabled AI targeting with structured creative refresh. See when AI ad targeting works for readiness checks.
Results
CAC fell 65% and ROAS rose 48% over eight weeks. Model outcomes with our CAC calculator before scaling spend.
Implementation timeline (optional detail)
Weeks 1 to 2: offer and landing page fixes. Weeks 3 to 4: creative tests. Weeks 5 to 8: AI targeting and scale.
Frequently asked questions
Can AI targeting lower CAC for fashion brands?
Yes, when conversion signal, creative volume, and post-click experience are solid first.
What creative works for sustainable apparel?
Material proof, fit guidance, and certification scope beat generic planet imagery.
How should returns affect CAC math?
Include return rate in true CAC and LTV models before declaring winners.