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Customer story
July 2025, against the monthly revenue target and planned budget.
About the brand
A century-old apparel giant with a reputation for excellence in smart casual wear, Seidensticker combines tradition with modernity, upholding craftsmanship, quality, and sustainability at every step of its process. Today, Seidensticker is one of the most renowned apparel brands, with an omnichannel presence, producing millions of garments annually and operating in all parts of the world.
A customer perspective
“Working with Lifesight has been a breakthrough for our marketing team. Their MMM framework combined with causal attribution gave us clear insights into what’s really driving results. We’ve been able to design smarter experiments, optimize budgets, and scale campaigns with measurable ROI.”
Gunter Neeb
Head of E-Commerce
Brand profile
Industry
Real Estate
Media Channels
TV, Radio, Direct Mail, Google, Facebook, Email
The Challenge
Like many global brands scaling across North America and Europe, Seidensticker’s growth team faced three structural barriers to efficient spend:
The Solution
The Results
Due to the nature of the industry, Seidensticker invested heavily in digital marketing to reach customers across regions and touchpoints. Their campaigns span both brand awareness and performance-driven initiatives. While this ensured visibility across the customer journey, it also introduced complexity in tracking and optimization, leading to fragmented measurement.
Each channel reported in isolation, leaving Seidensticker without a unified view of performance. This siloed approach made it difficult to identify true incremental impact, creating uncertainty in how budgets should be allocated.
Without clarity on what was really working, spend decisions were often based on incomplete insights. This hindered the ability to forecast outcomes accurately, especially in a seasonal, fast-moving industry like fashion, making long-term planning risky.
The insights above highlight that:
Their finance teams increasingly questioned the value of large upper-funnel investments in channels like Instagram and Criteo, where conversions are complex and drawn out. The marketing team believed these channels were vital for long-term brand health but struggled to prove their incremental revenue contribution.
Seidensticker partnered with Lifesight to cut through the uncertainty by implementing a clear, unified measurement and planning process. Lifesight consolidated data from all channels into one single source of truth, replacing siloed reports with a transparent, unified view of performance.
By moving beyond platform-reported metrics, Lifesight’s MMM model helped Seidensticker uncover the true incremental value of each channel. This eliminated double-counting and highlighted where real revenue impact came from.
The model revealed stark differences between pROAS (platform-reported ROAS) and iROAS (incremental ROAS).
This analysis gave Seidensticker the evidence to re-balance investments, cutting waste from over-credited platforms while defending budgets for channels with long-term value.
With incrementality insights and predictive modeling, Seidensticker could finally align spend with true performance drivers. Lifesight’s budget planner simulated different allocation scenarios, showing how revenue outcomes would shift based on investment levels.
The marketing team aimed to reduce spending while maintaining overall revenue. By simply reallocating funds toward higher-performing channels like Microsoft and Facebook, Seidensticker could achieve stronger media spend efficiency. Despite the reduced budget, but with the new media mix and budget strategy, Lifesight’s platform predicted an increase in overall revenue:
This shifted Seidensticker’s planning approach from spending more to spending smarter, proving that efficiency and growth could go hand in hand.
Lifesight empowered Seidensticker to not just measure but also experiment and validate the true value of upper-funnel channels. This gave the marketing team concrete evidence to defend and scale investments that might otherwise have been challenged by finance.
An experiment was run to test Outbrain’s high ROAS claims. Using a treatment vs. control market design, Lifesight uncovered:
This rigorous testing approach gave Seidensticker the confidence to scale Outbrain spend, demonstrating that upper-funnel channels could deliver tangible incremental value.
The recalibrated MMM insights post geo experiment for July–August 2025 had already highlighted Outbrain as a quietly powerful driver, showing a strong incremental ROAS of 18.72 despite platform reports understating efficiency (pROAS 0.54). Resulting in smashing July 2025 goals by 11.5% with significantly lesser spend.
By ditching touch-based attribution, adopting unified measurement, proving incrementality, and validating upper-funnel value through experimentation, Seidensticker was able to transform the way it plans and invests in marketing. Lifesight not only helped the brand cut waste and improve efficiency but also provided the evidence needed to scale confidently across markets.
This case demonstrates that in today’s competitive fashion industry, the key to growth isn’t spending more – it’s spending smarter, with CFO-ready measurement you can trust.
